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We stand by our products with an unmatched 5 year replacement warranty and full satisfaction guarantee! Product contains a four pack of premium 2022 upgraded honeywell humidifier Filters for Filter A, HAC-504AW, HAC-504, and HAC504V1. The best wicking filters for Honeywell humidifiers. Our filters are treated to increase filter length but the exact time to replace the filter will vary based on your water and air quality. Our competitors don’t do this and use cheaper manufacturing methods that leads to worse performance.

Compatible does not mean comparable – for best performance, use only a Genuine Honeywell humidifier filter. Features a wide water tank opening for easy fill & clean.
Indoor humidity levels between 40-60% can help relieve cough and congestion, keep throat and nasal passages hydrated and more. The wicking filter captures minerals from the water, helping to prevent white dust. Compatible humidifier filter replacements are not guaranteed to offer the same performance or efficiency. Easy to use – this cool mist humidifier includes three speed settings to adjust moisture output and sound level.

Dry air can cause static electricity, sleeping, damage wooden furniture & irritate health issues. Humidifiers for babies, adults: humidifiers diffuse moisture into the air, children, and many find that a humidifier for the home, bedroom or nursery becomes an essential part of a good night’s sleep when the air is dry or when sick.
99% of growth & migration of particles on the filter. Honeywell quality: improve your air quality & neutralize odors for a clean & healthy breathing experience year round with Honeywell replacement filters for air cleaners, purifiers & humidifiers. Captures minerals in the water in your humidifier & helps reduce white dust. A blue pre-filter layer helps capture large particles.

4 piece value pack - 4 premium humidifiers filters for your honeywell hac-504, hac-504AW, and HAC-504V1 humidifier filters.
Tips for daily use - for best results, flip your compatible Honeywell humidifier filter HAC 504 replacement daily and only fill humidifier tank with distilled water. Hard water degrades ALL compatible Honeywell humidifier filters and yellows them prematurely. Soak before replacing your compatible honeywell humidifier Filters Replacement Filters - Soak your Durabasics wick for Honeywell HCM350W filter in cool water before replacing to ensure uninterrupted moisture output.

Cough and congestion relief – humidifiers for home can be helpful during cold and flu season, when it’s difficult to sleep with cough and congestion. Cool mist humidifier – honeywell filter-free cool mist humidifier hul535w helps to ensure proper humidity levels in your home.
Indoor humidity levels between 40-60% can help relieve cough and congestion, keep throat/nasal passages hydrated and more. Humidifiers for bedroom and more – a cool mist humidifier fits into any room, making it a great choice for your family, in allergy season, even as a kids or baby humidifier. A brand you can trust – honeywell has been keeping families comfortable in their homes for over 100 years with our full line of humidifiers, filters and more.

Sleep better, whistling, breathe better, LIVE better! You’ll wish you found this years ago!.
Multiple mist settings + 360 degree rotating nozzle – this humidifier was created with you in mind. It pumps relief immediately and effectively! – feel better in minutes! Operates in total silence – sleep like a baby! no humming, or crackling as this durable whole-house humidifier steadily and efficiently dispenses the soothing cool mist you crave.

To increase filter length: use cold distilled water, and soak in white vinegar. Our competitors don’t do this and use cheaper manufacturing methods that leads to worse performance. If you have hard water, flip daily, the filter be stained yellow. Designed to fit the following honeywell humidifier models: hcm350w, hcm353, hcm-350b-cst, hcm-500, hcm350, hcm55019, hcm560, hcm300, hcm-550-19, hcm450bcst, hcm550, hcm-530, hcm-310t, hcm-450b-cst, hcm-535-20, hcm-560, hcm540, hcm-305t, hcm-315t, hcm-551, hcm-300, hcm-631, hcm-550, hcm315t, hcm-540, hcm53520, hcm-630, hcm305bcst, hcm500, hcm300t, hcm-350, hcm-350b, hcm-600, hcm630, hcm-350w, hcm310t, hcm600, HCM350B, hcm-535, hcm551, hcm-300t, hcm530, hcm305t, HCM631.
We are a usa based company and we know we sell the highest quality and best humidifier filters on Amazon. Our filters are treated to increase filter length but the exact time to replace the filter will vary based on your water and air quality. We manufacture our filters by utilizing a special interweaving locking pattern in order to keep the filter rigid and upright, even when soaking wet.

A brand you can trust – honeywell has been keeping families comfortable in their homes for over 100 years with our full line of humidifiers, filters and more. Cool mist humidifier – honeywell filter-free cool mist humidifier hul535b helps to ensure proper humidity levels in your home.
Quick and easy to use – this small humidifier features a compact size that makes it ideal for desktops or nightstands in medium-sized rooms. A humidifier or vaporizer can provide temporary relief by adding necessary moisture to the air. Use when the air is dry, when sick or to maintain optimal indoor humidity levels. It produces a fine, visible cool mist, has variable settings, a direction mist outlet and can run up to 24 hours.

Honeywell quality: improve humidity levels in your home & improve your comfort with a Honeywell humidifier. Honeywell humidifiers: humidity levels in your home between 40-60% can make the air feel warmer & dry skin.
Cool mist humidifier: this ultra quiet filter-free humidifier produces a fine, visible cool mist. Dry air can cause static electricity, damage wooden furniture & improve your breathing comfort, sleeping, nasal congestion & irritate health issues. It's designed for medium to large sized rooms and features variable moisture output settings and rotating mist nozzle that let you customize your comfort.

Just customize your Humidity, turn on the humidifier, and enjoy. Satisfaction guaranteed: experiencing issues, our california-based Customer Support Team is here to help. Note: to extend the life of humidifiers, search LEVOIT 10-pack Humidifier Water Filters when you need a replacement. Automatic convenience: with the smart humidity sensor, you don't have to worry about over-humidification anymore.
Note: in order to extend the service life of the product and a better experience, please do not fill past the tank’s max water line. Powerful performance: with humidification up to 4x faster than other brands, the Classic 300S provides relief in rooms as large as 505 ft². Experience alleviation of congestion, and up to 60 hours of operation, a large 6-L tank, and dry skin. Note: to ensure the high-quality service and the best user experience of smart products, our smart products have completed the optimization of the "one-click cancel subscription service".
1. Frequent Filter
#ad
Compatible Honeywell Germ Free Cool Mist Wicking Humidifier, HCM350w, Quietcare Tower & More. Replacement HAC 504, HCM350, Filter A. Fits HCM 350, HAC504, 504AW, Pack of 4, Frequent Filter
#adFrequent Filter #ad - We are a usa based company and we know we sell the highest quality and best humidifier filters on Amazon. If you have hard water, the filter be stained yellow. Designed to fit the following honeywell humidifier models: hcm350w, hcm600, hcm-530, hcm-350b-cst, hcm315t, hcm305t, hcm-535-20, hcm-630, hcm55019, hcm-350w, hcm560, hcm-450b-cst, hcm500, hcm530, hcm53520, hcm540, hcm-315t, hcm-600, hcm-535, hcm-350b, hcm-540, hcm305bcst, hcm-300, hcm-500, hcm-631, hcm353, hcm310t, hcm-310t, hcm-300t, hcm-551, HCM450BCST, hcm550, hcm-550-19, hcm551, hcm300, hcm630, hcm-350, hcm-560, hcm-550, hcm-305T, hcm350, hcm300t, hcm350b, HCM631.More information #ad
To increase filter length: use cold distilled water, flip daily, and soak in white vinegar. We manufacture our filters by utilizing a special interweaving locking pattern in order to keep the filter rigid and upright, even when soaking wet. We stand by our products with an unmatched 5 year replacement warranty and full satisfaction guarantee! Product contains a four pack of premium 2022 upgraded honeywell humidifier Filters for Filter A, HAC-504AW, HAC-504, and HAC504V1. The best wicking filters for Honeywell humidifiers. Our filters are treated to increase filter length but the exact time to replace the filter will vary based on your water and air quality. Our competitors don’t do this and use cheaper manufacturing methods that leads to worse performance.
Brand | Frequent Filter #ad |
Manufacturer | Frequent Filter #ad |
Weight | 0.51 Pounds |
Part Number | 43307-4979 |
Warranty | 5 years. |
More information #ad
2. Honeywell
#ad
Humidifier for Baby and Kids Rooms, Honeywell Cool Mist Humidifier, Bedrooms and More, 1 Gallon Tank, Medium Room, White
#adHoneywell #ad - Cough and congestion relief – humidifiers for home can be helpful during cold and flu season, when it’s difficult to sleep with cough and congestion. A humidifier can provide temporary relief by adding necessary moisture to the air. Cool mist humidifier – honeywell cool mist humidifier helps to ensure proper humidity levels in your home.Compatible does not mean comparable – for best performance, use only a Genuine Honeywell humidifier filter. Features a wide water tank opening for easy fill & clean.
More information #ad
Humidifiers for bedroom and more – a cool mist humidifier is great for a baby, in allergy season, and fits perfectly into any room. Use them when the air is dry, young children and adults, when sick or even just to maintain optimal indoor humidity levels. Indoor humidity levels between 40-60% can help relieve cough and congestion, keep throat and nasal passages hydrated and more. The wicking filter captures minerals from the water, helping to prevent white dust. Compatible humidifier filter replacements are not guaranteed to offer the same performance or efficiency. Easy to use – this cool mist humidifier includes three speed settings to adjust moisture output and sound level.
Brand | Honeywell #ad |
Manufacturer | Kaz #ad |
Height | 13.03 Inches |
Length | 18.58 Inches |
Weight | 9.4 Pounds |
Width | 10.39 Inches |
Part Number | HCM-350/HCM-350-TGT |
Model | HCM-350/HCM-350-TGT |
Warranty | 3 year limited warranty. |
More information #ad
3. Honeywell
#ad
Honeywell Replacement Wicking Filter A, 3 pack, White, 3 Count
#adHoneywell #ad - Humidifier replacement filter: hac504 filter a works with evaporative honeywell humidifiers in the HCM-350, HEV355, HCM-710 & HCM-315/HEV312 model series. Honeywell humidifiers: humidity levels in your home between 40-60% can make the air feel warmer & improve your breathing comfort, nasal congestion & dry skin.Dry air can cause static electricity, sleeping, damage wooden furniture & irritate health issues. Humidifiers for babies, adults: humidifiers diffuse moisture into the air, children, and many find that a humidifier for the home, bedroom or nursery becomes an essential part of a good night’s sleep when the air is dry or when sick.
More information #ad
Honeywell filters: genuine honeywell replacement wicking filters use a patented design that helps inhibit 99. 99% of growth & migration of particles on the filter. Honeywell quality: improve your air quality & neutralize odors for a clean & healthy breathing experience year round with Honeywell replacement filters for air cleaners, purifiers & humidifiers. Captures minerals in the water in your humidifier & helps reduce white dust. A blue pre-filter layer helps capture large particles.
Brand | Honeywell #ad |
Manufacturer | Kaz #ad |
Part Number | HAC504PF3 |
Model | HAC504PF3 |
More information #ad
4. Durabasics
#ad
Durabasics 4 Pack of Premium Humidifier Filters Compatible with Honeywell Humidifier Filter HAC-504, HAC-504AW & Honeywell Filter A | Replacement for Honeywell Filter HCM 350 & Cool Mist Humidifiers
#adDurabasics #ad - Compatible with honeywell humidifier filter model hcm350w & more - fits hcm350w, hcm55019, hcm300, hcm305t, hcm500, hcm-300, hcm350b, hcm540, hcm353, hcm53520, hcm550, hcm551, hcm-535, hcm-631, hcm-450b-cst, hcm-551, hcm-500, hcm-530, hcm-535-20, hcm-350w, hcm-540, hcm-550-19, hcm-350, hcm-310t, hcm310t, hcm300t, hcm-305t, hcm-560, hcm-350b, hcm305bcst, hcm-630, hcm-350b-cst, HCM530, hcm560, hcm600, hcm-550, hcm315t, hcm-315t, hcm-600, hcm450bcst, HCM-300T, hcm630, hcm350, HCM631.4 piece value pack - 4 premium humidifiers filters for your honeywell hac-504, hac-504AW, and HAC-504V1 humidifier filters.
More information #ad
Rigid construction to reduce sagging - our replacements for Honeywell replacement Filter A and Honeywell replacement filter HAC-504 are constructed with rigid absorbent paper to improve our filter's structure once wet and reduce sagging. Made from high-quality, durable material with an optimized filter design to maximize your compatible Honeywell HCM 350 filter moisture output. Tips for daily use - for best results, flip your compatible Honeywell humidifier filter HAC 504 replacement daily and only fill humidifier tank with distilled water. Hard water degrades ALL compatible Honeywell humidifier filters and yellows them prematurely. Soak before replacing your compatible honeywell humidifier Filters Replacement Filters - Soak your Durabasics wick for Honeywell HCM350W filter in cool water before replacing to ensure uninterrupted moisture output.
Brand | Durabasics #ad |
Manufacturer | Durabasics #ad |
Part Number | 43224-10536 |
Model | 43224-10536 |
More information #ad
5. Honeywell
#ad
Honeywell HUL535W Filter-Free Cool Mist Humidifier, White – Cool Mist Humidifier for Bedroom, Home or Office
#adHoneywell #ad - A humidifier or vaporizer can provide temporary relief by adding necessary moisture to the air. Quick and easy to use – this small humidifier features a compact size that makes it ideal for desktops or nightstands in medium-sized rooms.Cough and congestion relief – humidifiers for home can be helpful during cold and flu season, when it’s difficult to sleep with cough and congestion. Cool mist humidifier – honeywell filter-free cool mist humidifier hul535w helps to ensure proper humidity levels in your home.
More information #ad
Use when the air is dry, when sick or to maintain optimal indoor humidity levels. It produces a fine, visible cool mist, has variable settings, a direction mist outlet and can run up to 24 hours. Indoor humidity levels between 40-60% can help relieve cough and congestion, keep throat/nasal passages hydrated and more. Humidifiers for bedroom and more – a cool mist humidifier fits into any room, making it a great choice for your family, in allergy season, even as a kids or baby humidifier. A brand you can trust – honeywell has been keeping families comfortable in their homes for over 100 years with our full line of humidifiers, filters and more.
Brand | Honeywell #ad |
Manufacturer | Kaz #ad |
Height | 13.5 Inches |
Length | 8.5 Inches |
Weight | 3.8 Pounds |
Width | 8.5 Inches |
Part Number | HUL535W |
Model | HUL535W |
More information #ad
6. AquaOasis
#ad
Auto-Shut Off, AquaOasis™ Cool Mist Humidifier {2.2L Water Tank} Quiet Ultrasonic Humidifiers for Bedroom & Large room, Adjustable -360° Rotation Nozzle, Humidifiers for Babies Nursery & Whole House
#adAquaOasis #ad - Rest assured you can set it AND FORGET IT! 2. 2l extra large water tank – filter free- features a liftime warrenty! made with an impressive 2. 2l super large water tank that keeps your Room-Humidifier right on chugging for over 24 hours on a single fill! Designed. Dry air relief! look no further for the most effective cool mist humidefier on the market! Want to eliminate the suffering from the terrible effects of dry air? No need to struggle with cheap flimsy and leaky desk humidifiers.Sleep better, whistling, breathe better, LIVE better! You’ll wish you found this years ago!.
More information #ad
This quality ultrasonic humidifier is the one you’re looking for. We know you’ll want to shut this off before the tank runs out. Automatic shut off- no need to babysit this Humidifier. Your environment, your needs, and your preferences! designed with a super simple control dial and 360° rotating nozzle so that you can fully control and customize the mist output and mist flow direction. Multiple mist settings + 360 degree rotating nozzle – this humidifier was created with you in mind. It pumps relief immediately and effectively! – feel better in minutes! Operates in total silence – sleep like a baby! no humming, or crackling as this durable whole-house humidifier steadily and efficiently dispenses the soothing cool mist you crave.
Brand | AquaOasis #ad |
Height | 9.5 Inches |
Length | 8.5 Inches |
Width | 6 Inches |
Part Number | HD-1 |
Model | AO-101 |
More information #ad
7. Frequent Filter
#ad
Pack of 6, HCM350w, Quietcare Tower. Fits HAC 504, Frequent Filter Compatible/Replacement for Honeywell HAC504 Filter A Germ Free Cool Mist Wicking Humidifier Filter. Fits HCM 350, HCM350, 504AW
#adFrequent Filter #ad - We stand by our products with an unmatched 5 year replacement warranty and full satisfaction guarantee! Product contains a six pack of premium 2022 upgraded honeywell humidifier Filters for Filter A, HAC-504AW, HAC-504, and HAC504V1. The best wicking filters for Honeywell humidifiers.To increase filter length: use cold distilled water, and soak in white vinegar. Our competitors don’t do this and use cheaper manufacturing methods that leads to worse performance. If you have hard water, flip daily, the filter be stained yellow. Designed to fit the following honeywell humidifier models: hcm350w, hcm353, hcm-350b-cst, hcm-500, hcm350, hcm55019, hcm560, hcm300, hcm-550-19, hcm450bcst, hcm550, hcm-530, hcm-310t, hcm-450b-cst, hcm-535-20, hcm-560, hcm540, hcm-305t, hcm-315t, hcm-551, hcm-300, hcm-631, hcm-550, hcm315t, hcm-540, hcm53520, hcm-630, hcm305bcst, hcm500, hcm300t, hcm-350, hcm-350b, hcm-600, hcm630, hcm-350w, hcm310t, hcm600, HCM350B, hcm-535, hcm551, hcm-300t, hcm530, hcm305t, HCM631.
More information #ad
We are a usa based company and we know we sell the highest quality and best humidifier filters on Amazon. Our filters are treated to increase filter length but the exact time to replace the filter will vary based on your water and air quality. We manufacture our filters by utilizing a special interweaving locking pattern in order to keep the filter rigid and upright, even when soaking wet.
Brand | Frequent Filter #ad |
Manufacturer | Frequent Filter #ad |
Warranty | 5 years. |
More information #ad
8. Honeywell
#ad
Honeywell HUL535B Filter-Free Cool Mist Humidifier, Black – Cool Mist Humidifier for Bedroom, Home or Office
#adHoneywell #ad - Indoor humidity levels between 40-60% can help relieve cough and congestion, keep throat/nasal passages hydrated and more. Cough and congestion relief – humidifiers for home can be helpful during cold and flu season, when it’s difficult to sleep with cough and congestion.A brand you can trust – honeywell has been keeping families comfortable in their homes for over 100 years with our full line of humidifiers, filters and more. Cool mist humidifier – honeywell filter-free cool mist humidifier hul535b helps to ensure proper humidity levels in your home.
More information #ad
Humidifiers for bedroom and more – a cool mist humidifier fits into any room, making it a great choice for your family, in allergy season, even as a kids or baby humidifier. Quick and easy to use – this small humidifier features a compact size that makes it ideal for desktops or nightstands in medium-sized rooms. A humidifier or vaporizer can provide temporary relief by adding necessary moisture to the air. Use when the air is dry, when sick or to maintain optimal indoor humidity levels. It produces a fine, visible cool mist, has variable settings, a direction mist outlet and can run up to 24 hours.
Brand | Honeywell #ad |
Manufacturer | Kaz #ad |
Height | 13.5 Inches |
Length | 8.5 Inches |
Weight | 3.8 Pounds |
Width | 8.5 Inches |
Part Number | HUL535B |
Model | HUL535B |
More information #ad
9. Honeywell
#ad
Removeable Tank & Rotating Mist Nozzle for Medium to Large Rooms, Variable Settings, Honeywell Top Fill Cool Mist Humidifier Black Ultra Quiet with Auto Shut-Off, Bedroom, Baby Room
#adHoneywell #ad - Cool moisture for home or office: this humidifier features a removeable, easy to clean 1. 25-gallon tank that's can be refilled at the sink or with a water pitcher and allows up to 36 hours of operation, automatically shutting off when the tank is empty.Honeywell quality: improve humidity levels in your home & improve your comfort with a Honeywell humidifier. Honeywell humidifiers: humidity levels in your home between 40-60% can make the air feel warmer & dry skin.
More information #ad
Humidifiers for babies, children, and many find that a humidifier for the home, in allergy season, bedroom or nursery becomes an essential part of a good nights sleep when the air is dry, adults: humidifiers diffuse moisture into the air, or when sick. Cool mist humidifier: this ultra quiet filter-free humidifier produces a fine, visible cool mist. Dry air can cause static electricity, damage wooden furniture & improve your breathing comfort, sleeping, nasal congestion & irritate health issues. It's designed for medium to large sized rooms and features variable moisture output settings and rotating mist nozzle that let you customize your comfort.
Brand | Honeywell #ad |
Manufacturer | Kaz #ad |
Height | 12 Inches |
Length | 12 Inches |
Weight | 5.5 Pounds |
Width | 6 Inches |
Part Number | HUL570B |
Model | HUL570B |
Warranty | 2 year limited warranty. |
More information #ad
10. LEVOIT
#ad
Smart Control, LEVOIT Humidifiers for Bedroom Large Room Home, Humidity Setting and No Over-Humidification, Quiet Sleep Mode, Gray, Essential Oil Diffuser, 6L Top Fill Cool Mist for Baby and Plants
#adLEVOIT #ad - Convenient top-fill design: The large opening makes refilling and cleaning the tank easy. The most convenient app & voice control: the classic300s is undoubtedly your most intimate humidifier. If your product is defective, don’t worry about shipping it back. Enjoy the convenience of a thoughtfully-designed product.Just customize your Humidity, turn on the humidifier, and enjoy. Satisfaction guaranteed: experiencing issues, our california-based Customer Support Team is here to help. Note: to extend the life of humidifiers, search LEVOIT 10-pack Humidifier Water Filters when you need a replacement. Automatic convenience: with the smart humidity sensor, you don't have to worry about over-humidification anymore.
More information #ad
Relaxing aromatherapy: the classic300S offers both humidity and aromatherapy, so you can add your favorite essential oils to the aroma box and enjoy wonderful, fresh-smelling air. Also, you will love the soft, soothing night light. Note: in order to extend the service life of the product and a better experience, please do not fill past the tank’s max water line. Powerful performance: with humidification up to 4x faster than other brands, the Classic 300S provides relief in rooms as large as 505 ft². Experience alleviation of congestion, and up to 60 hours of operation, a large 6-L tank, and dry skin. Note: to ensure the high-quality service and the best user experience of smart products, our smart products have completed the optimization of the "one-click cancel subscription service".
Brand | LEVOIT #ad |
Manufacturer | LEVOIT #ad |
Height | 13.39 Inches |
Length | 9.65 Inches |
Weight | 4.41 Pounds |
Width | 7.56 Inches |
Part Number | Classic 300S |
Model | Classic 300S |
Warranty | Satisfaction Guaranteed: Experiencing issues? Our California-based Customer Support Team is here to help. If your product is defective, don’t worry about shipping it back. We’ll send you a replacement right away! |
More information #ad