[2) 2pcs]
[3) Commercial use 1 sheet (virus countermeasure)]
[1) 1 piece (virus prevention)]
Silver blend filter removes viruses and bacteria.
It traps dust and pollen from entering the air conditioner.
Adhesive type filter makes installation easy and cleanly like a sticker.
When the filter gets dirty, the replacement notification will pop out, so you can know when to change it at a glance.