Fits checked Oct 1, 2026 · How we check
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AIRCARE · humidifier · portable evaporative

AIRCARE HD04W replacement filter

Use part HDC3T. Every 30-90 days, but your water quality will ultimately dictate your wick's replacement frequency.

The filter that fits

Maker lists this model

AIRCARE HDC3T SuperWick

Part number
HDC3T
How many
1 per unit
How often
Every 30-90 days, but your water quality will ultimately dictate your wick's replacement frequency
Size
5"H x 6.13"W x 4.75"D

AIRCARE does not say how many wicks this model takes; one is assumed here, so check the old wick before ordering.

Buy HDC3T SuperWick on AmazonManufacturer page

Opens an Amazon search for AIRCARE HDC3T SuperWick. Check the listing says HDC3T.

See the sources

Sources

High confidence: the manufacturer names this exact model on a live page. Each line is the page we read and the day we read it.

  • Which filter fits aircare.com Maker's own page checked Oct 1, 2026
    AIRCARE HDC3T page, Compatible Products: 'MOISTAIR® humidifier models HD750, HD04W, HD850, HD03W'
  • How often aircare.com Maker's own page checked Oct 1, 2026
    'We recommend changing your wick every 30-90 days, but your water quality will ultimately dictate your wick's replacement frequency.'
  • Size aircare.com Maker's own page checked Oct 1, 2026
    DIMENSIONS: 5"H x 6.13"W x 4.75"D
  • What's in it aircare.com Maker's own page checked Oct 1, 2026
    'made from the highest-quality paper ... Every wick features our unique Trapmax® filtration technology'
Show all 5 sources

Which filter fits

  1. aircare.com Maker's own page checked Oct 1, 2026
    AIRCARE HDC3T page, Compatible Products: 'MOISTAIR® humidifier models HD750, HD04W, HD850, HD03W'
  2. aircare.com Maker's own page checked Oct 1, 2026
    HDC3T SuperWick® SKU HDC3T

How often

  1. aircare.com Maker's own page checked Oct 1, 2026
    'We recommend changing your wick every 30-90 days, but your water quality will ultimately dictate your wick's replacement frequency.'

Size

  1. aircare.com Maker's own page checked Oct 1, 2026
    DIMENSIONS: 5"H x 6.13"W x 4.75"D

What's in it

  1. aircare.com Maker's own page checked Oct 1, 2026
    'made from the highest-quality paper ... Every wick features our unique Trapmax® filtration technology'