GermGuardian Air Purifier UV-C Replacement Bulb, LB4000, for AC4300, AC4900 and AC4800, AC5300
GermGuardian Air Purifier UV-C Replacement Bulb, LB4000, for AC4300, AC4900 and AC4800, AC5300
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GermGuardian Air Purifier UV-C Replacement Bulb, LB4000, for AC4300, AC4900 and AC4800, AC5300

Key item features

  • Powerful UV-C: 5 Watt bulb with the power of UV-C for effective air purification.
  • Model Compatibility: Replacement bulb for GermGuardian Air Purifier Models AC4300BPTCA, AC4900, AC4825, AC4850, AC5300B, AC5350B, AC5350W, AC5900, CDAP4500, and CDAP5500.
  • Regular Replacement: Needs to be replaced every 10-12 months depending on use and environmental factors.
  • Genuine Parts: Use genuine Guardian Technologies replacement parts to maintain product performance.
  • Consistent Performance: Ensures the air purifier continues to operate efficiently with regular bulb replacement.
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Current price is $19.99
Price when purchased online
  • Free 90-day returns
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4.694510739856802 stars out of 5, based on 419 seller reviews(4.7)
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About this item

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Customer ratings & reviews

4.6 out of 5 stars
stars256 ratings243 reviews
How item rating is calculated
  1. 5 stars82% (209)
  2. 4 stars11% (27)
  3. 3 stars2% (5)
  4. 2 stars2% (4)
  5. 1 star4% (11)

Reviews summary

Pros

  • : Process is quick and requires minimal effort.
  • : Offers affordable options for customers.
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Showing 1-3 of 243 reviews

Jan 27, 2026
Leticia M.
5 out of 5 stars review

Seller Verified Purchase

I searched many places and could not find the correct replacement bulb for my air purifier. Not once did I think of going directly to GermGuardian website. Once I did and just like that I found exactly what I needed. I could not be happier because I know it's a GENUINE Replacement UV-C Bulb for Air Purifiers.

Review from http://GuardianTechnologies.com
Helpful?1GWHA0JWHVQX24398989
Apr 21, 2026
Dawn O.
5 out of 5 stars review

Seller Verified Purchase

I'm so glad I was able to find the bulb. We really like the air conditioner. Will be purchasing another one in the future for our home in Ohio. I have allergies bad, and this has helped a lot with the pollens in Arizona.

Review from http://GuardianTechnologies.com
Helpful?1GWHA0JWHVQX24398989
Apr 29, 2026
Patricia S.
5 out of 5 stars review

Seller Verified Purchase

Very pleased with purchase. Delivery was fast. Had some difficulty replacing the bulb in the purifier. Tight fit. Over all great experience and pleased with purchase.

Review from http://GuardianTechnologies.com
Helpful?1GWHA0JWHVQX24398989