EnviroCare Type Y Microfiltration Vacuum Bags, 9 Pack #856-9 (HooverOEM# 4010100Y)
EnviroCare Type Y Microfiltration Vacuum Bags are 30% more efficient than the standard paper bags. They are designed to keep 99.7% of all dust .5 microns and larger in the vacuum bag. These are comparable with Hoover's Allergen Style bag, part number 4010100Y.
These bags fit the following Hoover model numbers: U5140-900, UH30015, UH30030, U8172900, U8174900, U8181-900, U8187-900, U8188-900, UH40110, U5458-900, U5458-910, U5460-900, U5462-900, U5467-900, U5468-900, U5470-900, U5471-900, U5472-900, U5473-900, U5481-900, U5491-900, U5491-950, UH30070, UH30085, U6439900, U6454900, U6485100, U6485200, U6485300, U6485900, UH50000, UH50005B, C1703900
Hoover WindTunnel Y Bags 
