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.Duty & taxes paid at delivery

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FLT4825 HEPA Filter B Replacement for Guardian Air Purifier AC4825E AC4820 | Also Fits for AC4825 AC4300 AC4800 AC4880 AC4900 AC4850 AC4850PT AP2200CA, 4 Pack HEPA with 8 Activated Carbon Pre-Filters

FLT4825 HEPA Filter B Replacement for Guardian Air Purifier AC4825E AC4820 | Also Fits for AC4825 AC4300 AC4800 AC4880 AC4900 AC4850 AC4850PT AP2200CA, 4 Pack HEPA with 8 Activated Carbon Pre-Filters

Product ID: 657293023

Details

Air Filter Construction
Pleated
Brand
isinlive
Filter Shape
Rectangular
Item Weight
13.76 ounces
Manufacturer
isinlive
Material
Plastic

🌀4 HEPA filters for deep air purification

🌿8 activated carbon pre-filters for odor & VOC removal

📏Precision fit for 12+ Guardian & compatible models

$U4019

Duties & taxes included

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Sold byAmazon UruguayDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌬️ Breathe Better, Live Smarter — Don’t Miss Out on Cleaner Air!

ODOR TOXIN DEFENSE - Dual-layer activated carbon pre-filters neutralize odors, smoke, and harmful VOCs effectively.
ULTIMATE AIR CLARITY - Quadruple HEPA filters trap 99.97% of airborne particles for fresher, cleaner air.
YEAR ROUND FRESHNESS - Complete 4-pack with 8 pre-filters ensures you’re always ready for timely replacements and peak performance.
ECO CONSCIOUS QUALITY - Crafted with FSC-certified materials, combining sustainability with premium filtration standards.
SEAMLESS COMPATIBILITY - Engineered to perfectly fit a wide range of Guardian and PureGuardian air purifiers—no guesswork needed.

The FLT4825 HEPA Filter B Replacement pack includes 4 high-efficiency HEPA filters and 8 activated carbon pre-filters designed for Guardian and compatible air purifiers. This precision-fit set ensures superior removal of airborne particles, odors, and VOCs, making it ideal for everyday use in homes and offices. Made with FSC-certified materials, it supports sustainable living while maintaining top filtration performance.

Specifications

ASIN	B07RJ36L6L
Air Filter Construction	Pleated
Best Sellers Rank	#13,031 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	4.8 4.8 out of 5 stars (5,342)
Filter Shape	Rectangular
Item Dimensions L x W x Thickness	15.7"L x 4.7"W x 0.6"Th
Item Weight	13.76 ounces
Manufacturer	isinlive
Material Type	Plastic
Model Number	FLT4825
Number of Items	12
Product Grade	new
UPC	680904375826
Unit Count	12 Count

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