https://www.ebay.com/sch/i.html?_nkw=3M+Gvp+443+Vapor+Hepa+Cs+6+&_sacat=0&_dmd=2

3M Gvp-443 Vapor/Hepa (Cs/6)

Regular price
$577.00
Sale price
$420.00

Compatible with a variety of applications and headgear Attaches to the motor blower and filters the air supplied to the headgear Quick and easy replacement