How the quality of prefilters? thick and sturd as the oem?

They are premium prefilters and same as oem quality. You can buy with confidence.

Do these hepa have odor ?

Not at all. Even when first unpackaged. The odor of clean air after needing a new filter for 3 weeks is all I smell! :)

4870 isn't listed with compatible models so I would think not.

Replacing filters worked, but red led ("replace filter") still blinks ?

Try holding the UV light button for 5 seconds. That should reset the replace filter light.

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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4 Pack FLT4825 Filter B Replacement with Activated Carbon Pre-Filters Compatible with Guardian HEPA Air Purifier AC4825 AC4825E AC4300 AC4800 AC4880 AC4900 AC4850

Product ID: 657293023

Details

Air Filter Construction
Pleated
Brand
isinlive
Filter Shape
Rectangular
Item Weight
0.86 Pounds
Manufacturer
isinlive
Material
Plastic

🌀True HEPA filtration captures 99.97% of particles

🌿Activated Carbon Pre-Filters for odor & VOC removal

🛡️5-pack with 8 extra pre-filters for long-lasting freshness

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฿3930

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Sold byAmazon ThailandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌬️ Elevate your air game—because your space deserves the freshest vibe!

BULK VALUE PACK - Includes 5 HEPA filters plus 8 extra activated carbon pre-filters—never run out of clean air essentials.
ODOR FREE OASIS - Activated Carbon Pre-Filters neutralize odors and harmful VOCs, creating a fresher environment.
EXTENDED FILTER LIFE - Pre-filters protect and prolong the HEPA filter’s performance, saving you money and hassle.
UNIVERSAL COMPATIBILITY - Fits multiple Guardian, PureGuardian, and Black+Decker air purifier models for seamless replacement.
BREATHE CLEANER LIVE BETTER - Premium HEPA Filter B removes allergens, dust, and pollutants with 99.97% efficiency.

This 5-pack FLT4825 HEPA Filter B replacement set features premium HEPA filters that capture 99.97% of airborne particles, paired with activated carbon pre-filters to eliminate odors and VOCs. Compatible with a wide range of Guardian, PureGuardian, and Black+Decker air purifiers, this bulk pack ensures long-lasting, fresh air quality with FSC-certified materials for eco-conscious users.

Specifications

ASIN	B07RJ36L6L
Air Filter Construction	Pleated
Best Sellers Rank	#14,421 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #86 in Home Air Purifier Parts & Accessories
Brand Name	isinlive
Common Applications	Appliances
Compatible Air Purifier Models	GermGuardian AC4300BPTCA, GermGuardian AC4850PT, GermGuardian AC4900CA, PureGuardian AP2200CA
Compatible Devices	Compatible with Guardian filter b, FLT4825, AC4300BPTCA, AC4900CA, AC4825, AC4825E, AC4850PT, AC4900CA, Compatible with PureGuardian Model AP2200CA and Black+Decker BXAP148
Customer Reviews	4.7 4.7 out of 5 stars (5,266)
Filter Shape	Rectangular
Item Dimensions L x W x Thickness	15.7"L x 4.7"W x 0.6"Th
Item Weight	0.86 Pounds
Manufacturer	isinlive
Material Type	Plastic
Model Number	FLT4825
Number of Items	12
Product Grade	new
UPC	680904375826
Unit Count	12.0 Count

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฿3930

Duties & taxes included

In stock

Sold byAmazon ThailandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Thailand.

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TrustScore 4.5 | 7,300+ reviews

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