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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.
Compatible with honeywell humidifier filter model hcm350w & more - fits hcm350w, hcm-631, hcm-630, hcm-535-20, hcm350b, hcm500, hcm-560, hcm-600, hcm-305t, hcm530, hcm353, hcm310t, hcm550, hcm-550, hcm53520, hcm-540, hcm450bcst, hcm300, hcm560, hcm300t, hcm-530, hcm-350b-cst, hcm-350b, hcm-535, hcm-310t, hcm350, hcm-550-19, hcm-300, hcm600, hcm-500, HCM630, hcm-315t, hcm305bcst, hcm55019, hcm-350w, hcm-300t, hcm-450b-cst, hcm540, hcm305t, hcm551, hcm-350, hcm-551, HCM315T, HCM631.

Honeycomb pad design, allows for maximum absorption of water for optimum moisture output. Premium material – made of professional filter paper to ensure optimal performance.
Easy to install and replace – for best performance, recommended filter replacement interval of 1-2 months.

We are a usa based company and we know we sell the highest quality and best humidifier filters on Amazon. Designed to fit the following honeywell humidifier models: hcm350w, hcm310t, hcm55019, hcm-550, hcm-305t, hcm-350b, hcm350, hcm-551, hcm-450b-cst, hcm-550-19, hcm-530, hcm350b, hcm-310t, hcm550, hcm305bcst, hcm530, hcm500, hcm-300, hcm560, hcm-350w, hcm-535, hcm-540, hcm300t, hcm540, hcm315t, hcm53520, hcm-500, hcm600, hcm551, hcm-300t, hcm450bcst, hcm300, hcm-560, hcm630, hcm-630, hcm-600, hcm-350b-cst, hcm-631, HCM-350, hcm353, hcm-315t, hcm-535-20, hcm305t, HCM631.
We stand by our products with an unmatched 5 year replacement warranty and full satisfaction guarantee! 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. If you have hard water, flip daily, the filter be stained yellow.

Meet your needs – if there are any questions please contact us, we are committed to offer the premium products and efficient customer service. Replacement filter a - compare to part # HAC-504, HAC-504AW, HAC504V1. Easy to install and replace – for best performance, recommended filter replacement interval of 1-2 months.

Easy to install and replace – For best performance, recommended filter replacement interval of 1-2 months. Premium material– made from high-quality, durable material with an optimized filter design to maximize your compatible for Honeywell HCM 350 filter moisture output. Upgraded blue pre-filter layer - Our premium upgraded blue layer pre-filter helps reduce the quantity of large particles circulating in your air.

Compatibility- hac-504 filters compatible with hcm-700 series: hcm-710, HCM-1000C, hcm-1000 Series: HCM-1000, HCM-1010. Compatibility- humidifier wicking filters compatible with hcm-300 series: hcm-300t, hcm-350b, HCM-305T, HCM-315T, HCM-310T, HCM-350, hcm-350w, HCM-450BCST.

Replacement filter a - compare to part # HAC-504, HAC-504AW, HAC504V1. Compatible with honeywell humidifier filter model hcm350w & more - fits hcm350w, hcm-550, hcm-560, hcm-535, hcm551, hcm300, hcm630, hcm-310t, hcm-350w, hcm-530, hcm-550-19, hcm-350b, hcm450bcst, hcm-551, hcm-450b-cst, hcm-631, hcm-350, hcm55019, hcm550, hcm305bcst, hcm-500, hcm353, hcm540, hcm-300t, HCM315T, hcm305t, hcm-350b-cst, hcm350, hcm560, hcm-305t, hcm310t, hcm-600, hcm-630, hcm500, hcm-540, hcm53520, hcm300t, hcm-300, hcm350b, HCM-535-20, hcm-315t, hcm600, hcm530, HCM631.
Honeycomb pad design, allows for maximum absorption of water for optimum moisture output. Customer service - if our filters didn't meet your exceptation, please contact our customer service immediately to receive a full refund or new product. We want to ensure you have a clean, healthy and safe home. Premium material – made of professional filter paper to ensure optimal performance.

Compatibility- hac-504 filters compatible with hcm-700 series: hcm-710, HCM-1000 Series: HCM-1000, hcm-1000C, HCM-1010. Compatibility- hac-504 humidifier filters compatible with hcm-600 series: hcm-630, hcm-632, hcm-640bw, hCM-635, HCM-632TG, HCM-645, HCM-631, hcm-646, HCM-650.


A blue pre-filter layer helps capture large particles. Honeywell humidifiers: humidity levels in your home between 40-60% can make the air feel warmer & dry skin.
Honeywell quality: improve your air quality & healthy breathing experience year round with Honeywell replacement filters for air cleaners, purifiers & neutralize odors for a clean & humidifiers. Captures minerals in the water in your humidifier & helps reduce white dust. Honeywell filters: genuine honeywell replacement wicking filters use a patented design that helps inhibit 99. 99% of growth & migration of particles on the filter.
1. Durabasics
#ad
HAC-504AW & Honeywell Filter A | Replacement for Honeywell Filter HCM 350 & Cool Mist Humidifiers, Durabasics 4 Pack of Premium Humidifier Filters Compatible with Honeywell Humidifier Filter HAC-504
#adDurabasics #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. 4 piece value pack - 4 premium humidifiers filters for your honeywell hac-504, hac-504AW, and HAC-504V1 humidifier filters.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.
More information #ad
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. Compatible with honeywell humidifier filter model hcm350w & more - fits hcm350w, hcm-631, hcm-630, hcm-535-20, hcm350b, hcm500, hcm-560, hcm-600, hcm-305t, hcm530, hcm353, hcm310t, hcm550, hcm-550, hcm53520, hcm-540, hcm450bcst, hcm300, hcm560, hcm300t, hcm-530, hcm-350b-cst, hcm-350b, hcm-535, hcm-310t, hcm350, hcm-550-19, hcm-300, hcm600, hcm-500, HCM630, hcm-315t, hcm305bcst, hcm55019, hcm-350w, hcm-300t, hcm-450b-cst, hcm540, hcm305t, hcm551, hcm-350, hcm-551, HCM315T, HCM631.
Brand | Durabasics #ad |
Manufacturer | Durabasics #ad |
Part Number | 43224-10536 |
Model | 43224-10536 |
More information #ad
2. Lemige
#ad
HCM350, HCM-300T, HAC-504AW, HCM-315T, HCM-710, HCM-350W, HCM-600, HAC504V1, Replacement Filter A, Lemige 4 Pack HAC-504 Humidifier Filters for Honeywell Humidifier HAC-504
#adLemige #ad - Meet your needs – if there are any questions please contact us, we are committed to offer the premium products and efficient customer service. Replacement filter a - compare to part # HAC-504, HAC-504AW, HAC504V1.Honeycomb pad design, allows for maximum absorption of water for optimum moisture output. Premium material – made of professional filter paper to ensure optimal performance.
More information #ad
Fit models – hac504 humidifier wicking filters compatible with honeywell humidifiers hcm-300 series: 300t, 535-20, 645, 305t, 635, 2020, 550, 1010; hcm-2000 series: 2000c, 350w; hcm-500 series: 530, 2051, 2052; hev-312, 640bw, 2002, 310t, 560; hcm-600 series: 630, 2001, 350, 646, 535, 631, 632TG, 540, 632, 350B, 2050, 1000c, 315t, 551, 550-19, 650; HCM-700 Series: 710; HCM-1000 Series: 1000, 355. Easy to install and replace – for best performance, recommended filter replacement interval of 1-2 months.
Brand | Lemige #ad |
Manufacturer | Lemige #ad |
More information #ad
3. Frequent Filter
#ad
HCM350w, 504AW, Pack of 6, Frequent Filter Compatible/Replacement for Honeywell HAC504 Filter A Germ Free Cool Mist Wicking Humidifier Filter. Fits HCM 350, HCM350, Quietcare Tower. Fits HAC 504
#adFrequent Filter #ad - To increase filter length: use cold distilled water, and soak in white vinegar. The best wicking filters for Honeywell humidifiers. Product contains 6 premium 2022 upgraded honeywell humidifier filters for Filter A, HAC-504, HAC-504AW, and HAC504V1. 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 are a usa based company and we know we sell the highest quality and best humidifier filters on Amazon. Designed to fit the following honeywell humidifier models: hcm350w, hcm310t, hcm55019, hcm-550, hcm-305t, hcm-350b, hcm350, hcm-551, hcm-450b-cst, hcm-550-19, hcm-530, hcm350b, hcm-310t, hcm550, hcm305bcst, hcm530, hcm500, hcm-300, hcm560, hcm-350w, hcm-535, hcm-540, hcm300t, hcm540, hcm315t, hcm53520, hcm-500, hcm600, hcm551, hcm-300t, hcm450bcst, hcm300, hcm-560, hcm630, hcm-630, hcm-600, hcm-350b-cst, hcm-631, HCM-350, hcm353, hcm-315t, hcm-535-20, hcm305t, HCM631.
More information #ad
We stand by our products with an unmatched 5 year replacement warranty and full satisfaction guarantee! 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. If you have hard water, flip daily, the filter be stained yellow.
Brand | Frequent Filter #ad |
Manufacturer | Frequent Filter #ad |
Part Number | HAC504 |
Model | HAC504 |
More information #ad
4. Lemige
#ad
HCM-315T, HCM-300T, Replacement Filter A,, Lemige 6 Pack HAC-504 Humidifier Filters for Honeywell Humidifier HAC-504, HCM-710, HAC504V1, HCM350, HCM-600, HCM-350W, HAC-504AW
#adLemige #ad - Fit models – hac504 humidifier wicking filters compatible with honeywell humidifiers hcm-300 series: 300t, 551, 632tg, 535-20, 2002, 550, 640bw, 310t, 2020, 2052; hev-312, 631, 350w; hcm-500 series: 530, 540, 535, 646, 650; hcm-700 series: 710; hcm-1000 series: 1000, 645, 2051, 560; HCM-600 Series: 630, 315t, 2001, 632, 350, 305t, 1010; hcm-2000 series: 2000c, 350B, 1000c, 2050, 550-19, 635, 355.More information #ad
Honeycomb pad design, allows for maximum absorption of water for optimum moisture output. Premium material – made of professional filter paper to ensure optimal performance. Meet your needs – if there are any questions please contact us, we are committed to offer the premium products and efficient customer service. Replacement filter a - compare to part # HAC-504, HAC-504AW, HAC504V1. Easy to install and replace – for best performance, recommended filter replacement interval of 1-2 months.
Brand | Lemige #ad |
Manufacturer | Lemige #ad |
More information #ad
5. getalong
#ad
Filter A, HAC-504AW, HCM300, HCM350W,HCM350B, getalong 4 Pack Humidifier Filters Compatible for Honeywell Humidifier Replacement Filter HAC-504
#adgetalong #ad - Compatibility- 4 pack filters compatible with honeywell replacement wicking Filter A for your Honeywell HAC-504, HAC-504AW, and HAC-504V1 humidifier filters. Compatibility-compatible with honeywell humidifier filter model hcm350w & more - fits hcm350w, hcm-550, hcm300, hcm-550-19, hcm55019, hcm550, hcm-540, hcm-535-20, hcm450bcst, hcm300t, hcm350b, hcm600, hcm-310t, hcm-305t, hcm540, hcm-350, hcm310t, hcm-315t, hcm350, hcm305bcst, hcm500, hcm-300t, HCM560, hcm-560, hcm305t, hcm315t, hcm-500, hcm-600, HCM-530, hcm551, HCM-300, hcm-350b, hcm-450b-cst, hcm530, hcm630, hcm353, hcm-631, hcm-535, hcm53520, hcm-630, hcm-350w, hcm-350B-CST, hcm-551, HCM631.More information #ad
Easy to install and replace – For best performance, recommended filter replacement interval of 1-2 months. Premium material– made from high-quality, durable material with an optimized filter design to maximize your compatible for Honeywell HCM 350 filter moisture output. Upgraded blue pre-filter layer - Our premium upgraded blue layer pre-filter helps reduce the quantity of large particles circulating in your air.
Brand | getalong #ad |
Manufacturer | getalong #ad |
More information #ad
6. Engery
#ad
HCM-350W, 2 Pack HAC-504 Replacement Humidifier Wicking Filters Compatible with Honeywell HAC-504, HCM-600, HCM-300T, HCM-710, HCM350, HAC504V1, Filter A, HCM-315T, HAC-504AW
#adEngery #ad - Compatibility- hac-504 humidifier filters compatible with hcm-600 series: hcm-630, hcm-632TG, hcm-635, hcm-645, HCM-632, HCM-640BW, hcm-631, HCM-646, HCM-650.Compatibility- hac-504 filters compatible with hcm-700 series: hcm-710, HCM-1000C, hcm-1000 Series: HCM-1000, HCM-1010. Compatibility- humidifier wicking filters compatible with hcm-300 series: hcm-300t, hcm-350b, HCM-305T, HCM-315T, HCM-310T, HCM-350, hcm-350w, HCM-450BCST.
More information #ad
Compatibility- hac-504 replacement compatible with hcm-2000 series: hcm-2000c, hcm2052, hcM-2001, HCM-2002, hcm-2051, hcm-2050, hcm-2020, hev-312, HEV-355. Compatibility- hac-504 filter a compatible with hcm-500 series: hcm-530, hcm-550-19, hcm-560 Compare to part # hac-504, hcm-535-20, hcm-550, hcm-540, hcm-535, hac-504AW, hcm-551, HAC504V1.Brand | Engery #ad |
Manufacturer | Engery #ad |
More information #ad
7. Yeelife
#ad
HCM350W, HCM1000, Filter A, 6Pack, Humidifier Filters Replacement for Honeywell Humidifier Filter HCM350, Humidifier Filter for Honeywell Humidifier Wick Filter HAC504, HAC504AW, HCM350B, HCM-710
#adYeelife #ad - Hard water degrades ALL compatible Honeywell humidifier filters and yellows them prematurely. For best results, flip your compatible honeywell humidifier filter HAC 504 replacement daily and only fill humidifier tank with distilled water.Replacement filter a - compare to part # HAC-504, HAC-504AW, HAC504V1. Compatible with honeywell humidifier filter model hcm350w & more - fits hcm350w, hcm-550, hcm-560, hcm-535, hcm551, hcm300, hcm630, hcm-310t, hcm-350w, hcm-530, hcm-550-19, hcm-350b, hcm450bcst, hcm-551, hcm-450b-cst, hcm-631, hcm-350, hcm55019, hcm550, hcm305bcst, hcm-500, hcm353, hcm540, hcm-300t, HCM315T, hcm305t, hcm-350b-cst, hcm350, hcm560, hcm-305t, hcm310t, hcm-600, hcm-630, hcm500, hcm-540, hcm53520, hcm300t, hcm-300, hcm350b, HCM-535-20, hcm-315t, hcm600, hcm530, HCM631.
More information #ad
Honeycomb pad design, allows for maximum absorption of water for optimum moisture output. Customer service - if our filters didn't meet your exceptation, please contact our customer service immediately to receive a full refund or new product. We want to ensure you have a clean, healthy and safe home. Premium material – made of professional filter paper to ensure optimal performance.
Brand | Yeelife #ad |
Manufacturer | Yeelife #ad |
Height | 0.79 Inches |
Length | 6.3 Inches |
Width | 4.33 Inches |
More information #ad
8. Yonice
#ad
HCM-710, HCM-300T, HAC504V1, HAC-504AW, HCM-350W, Filter A, HCM-315T, HCM-600, Yonice 4 Pack HAC-504 Replacement Humidifier Wicking Filters Compatible with Honeywell HAC-504, HCM350
#adYonice #ad - Compatibility- hac-504 filter a compatible with hcm-500 series: hcm-530, hcm-535, hcm-550-19, hac-504aw, hcm-550, hcm-540, hcm-560. Compare to part # hac-504, hcm-551, hcm-535-20, HAC504V1.Compatibility- hac-504 filters compatible with hcm-700 series: hcm-710, HCM-1000 Series: HCM-1000, hcm-1000C, HCM-1010. Compatibility- hac-504 humidifier filters compatible with hcm-600 series: hcm-630, hcm-632, hcm-640bw, hCM-635, HCM-632TG, HCM-645, HCM-631, hcm-646, HCM-650.
More information #ad
Compatibility- humidifier wicking filters compatible with hcm-300 series: hcm-300t, HCM-315T, HCM-350B, hcm-305t, HCM-350W, HCM-350, hcm-310t, HCM-450BCST. Compatibility- hac-504 replacement compatible with hcm-2000 series: hcm-2000c, hcm-2001, hev-312, HCM2052, hcm-2002, hcm-2050, hcm-2051, HCM-2020, HEV-355.Brand | Yonice #ad |
Manufacturer | Yonice #ad |
More information #ad
9. HQRP
#ad
HQRP Wick Filter сompatible with Honeywell HAC-504AW HAC-504 HCM-300 Series HCM-315 HCM315 HCM-315T HCM-350 HCM350 HCM-300T HCM-310T HCM-330T HCM-350B HCM-350W Humidifiers
#adHQRP #ad - Compatible with honeywell humidifier models: hcm-300, hcm-2050, hcm-350, hcm450bcst, hcm-2051, hcm-1010, hcm-600, hcm-645, hcm-635, hcm-350w, hcm-350b, hcm-535, hcm-310t, hcm-300t, hcm-631, hcm-2000c, hcm-305t, hcm-710, hcm-2000, hcm-315t, hcm-2020, hcm-530, hcm-551, hcm-550-19, hcm-650, hcm-632tg, hcm-540, hcm-535-20, hcm-646, hcm-640bw, hcm2052, hcm-350b-cst, hcm-632, hcm-550, hcm-1000c, hcm-500, hev-312, hcm-2002, hcm-2001, hcm-1000, HCM-700, hcm-560, hcm-630, and HEV-355.More information #ad
Replace filter every 4-6 weeks, depending on usage and hardness of water;. Improves efficiency of the humidifier, providing clean, eliminates minerals and impurities from the water, fresh moisture. Compatible with honeywell hac-504aw / hac-504 Filter A; Extended filter life with help of reinforced outer layer;. Hqrp® wicking Filter Replacement;.Brand | HQRP #ad |
Manufacturer | HQRP #ad |
Part Number | 884667908251506 |
Model | 884667908251506 |
More information #ad
10. Honeywell
#ad
3 Count, 3 pack, White, Honeywell Replacement Wicking Filter A
#adHoneywell #ad - Dry air can cause static electricity, damage wooden furniture & improve your breathing comfort, sleeping, nasal congestion & irritate health issues. Humidifier replacement filter: hac504 filter a works with evaporative honeywell humidifiers in the HCM-350, HEV355, HCM-710 & HCM-315/HEV312 model series.A blue pre-filter layer helps capture large particles. 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, adults: humidifiers diffuse moisture into the air, 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. Honeywell quality: improve your air quality & healthy breathing experience year round with Honeywell replacement filters for air cleaners, purifiers & neutralize odors for a clean & humidifiers. Captures minerals in the water in your humidifier & helps reduce white dust. Honeywell filters: genuine honeywell replacement wicking filters use a patented design that helps inhibit 99. 99% of growth & migration of particles on the filter.
Brand | Honeywell #ad |
Manufacturer | Kaz #ad |
Part Number | HAC504PF3 |
Model | HAC504PF3 |
More information #ad