Can I use this on my kn furnace filter

No, the K&N Air Filter Cleaner and Degreaser: Power Kleen 99-0621 is only for use on engine air filters. The correct cleaner for the K&N HVAC air filter is the 99-6010.

Do they make this in aerosol form? Trigger will do fine I'm sure, just can't stand the small pump spray bottle.

I've never seen an aerosol form. the one I bought was just like the picture shown, like Windex or other household cleaners.

I have 2 k&n filters and 1 aem dryflow filter. can i use the k&n to clean both, or should i only use the aem brand for the aem filter?

AEM filters are dry flow so you don't spray them with oil like the K&N's. The K&n cleaner is formulated to clean their filters, removing the old oil too. It would probably work fine on AEM,just being a little more harsh but why chance it. It could degrade the element over time. I'd use their stuff so as not to void any warranty. Better yet would be to get all K&N's and be done with it. One brand, one cleaner. Just a thought. Good luck.

Will this work for cleaning a mass air flow sensor?

No!!! A simple search for “mass air flow sensor cleaner “ will yield some products.

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K&N Power Kleen

Product ID: 2942104

Details

Brand
K&N
Item Form
Spray
Material Feature
Biodegradable
Scent
Unscented
Specific Uses For Product
Vehicle

⚡Restores peak airflow efficiency

🧴Powerful degreaser dissolves grime fast

♻️Biodegradable & residue-free formula

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₹ 4746

Duties & taxes included

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Description

⚡ Clean smarter, drive stronger — don’t let grime slow you down!

SAFE UNSCENTED - Gentle on your filter media with no harsh fumes or damage risk.
TRUSTED BY EXPERTS - Only K&N-approved cleaner to keep your warranty intact.
ECO FRIENDLY FORMULA - Biodegradable and residue-free for guilt-free maintenance.
FAST ACTING DEGREASER - Dissolves old oil and buildup quickly for hassle-free cleaning.
RESTORE LIKE NEW PERFORMANCE - Revive your K&N filter’s airflow and power effortlessly.

K&N Power Kleen is a professional-grade, biodegradable air filter cleaner designed exclusively for K&N cotton media filters. It rapidly dissolves oil and dirt buildup without leaving residue, restoring your filter’s airflow and performance while preserving your warranty. Trusted by automotive pros, this unscented spray ensures your vehicle breathes easy and runs at peak efficiency.

Specifications

ASIN	B00029WYDU
Best Sellers Rank	#6,627 in Automotive ( See Top 100 in Automotive ) #4 in Automotive Air Filter Cleaning Products
Brand Name	K&N
Contains Liquid Contents?	Yes
Customer Reviews	4.6 4.6 out of 5 stars (1,788)
Global Trade Identification Number	00024844000316
Included Components	Auto part, Automotive Accessories, Replacement and Performance parts
Item Form	Spray
Item Type Name	Air Filter Cleanser/Degr
Item Volume	946 Milliliters
Item Weight	2.4 Pounds
Manufacturer	K&N Engineering
Material Features	Biodegradable
Material Type Free	Biodegradable
Model Number	99-0621
Number of Items	1
Part Number	99-0621
Scent	Unscented
Size	1 Count (Pack of 1)
Special Features	Residue Free
Specific Uses For Product	Vehicle
Surface Recommendation	Metal
UPC	172303176833 024844000316
Unit Count	1.0 Count
Warranty Description	Manufacturer Warranty

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