Numatic Henry Cordless HVB160 bags, filters and battery
NVM-1CH dust bags, a TriTex 907073 pre-motor filter and a 904382 battery.
Every version in the "Also covers" list takes the same parts.
Dust bags
Pre-motor filters
Batteries
Finding the model number
It's worth a look at the rating plate first, because names get reused across generations. On the drum-shaped Henry family (Henry itself plus Hetty and Harry) the rating label sits under the carry handle, though some have it on the back of the top section (the hat). James and Charles have it on the back of the machine, and so does George. On the Quick models it's inside the drum. The label shows the model and power rating, plus a serial number that starts with the year and week.
Source: Numatic, 28 Oct 2026
When to change them
A bag lasts up to about a month with average use; change it when the machine feels heavy or suction drops. Check the bag often. The TriTex/MicroFresh filter is not washable: tap or shake the dust off instead. (source)
A bag that's only half full can still be done for: fine dust blocks the pores first, which is why the indicator can go red early after a lot of plaster or fireplace dust.
Seeing a full warning on a fresh bag usually points to a blockage in the hose or floorhead. Check there before blaming the bag.
Washable filters go back in bone dry or not at all. A damp one smells, and on some machines it can let the motor pull moisture through.
A battery doesn't die overnight. The run time on a full charge shrinks month by month, and once it won't get you round the house it's time for a new one.
If it cuts out with charge left, look for a blockage in the wand or filter before you blame the battery. A clogged machine can stop just like a flat one.
Quick answers
What dust bags does the Numatic Henry Cordless HVB160 take?
NVM-1CH, sold by Numatic as the Numatic NVM-1CH HepaFlo filter bags.
If I've got a Numatic Henry Cordless HVB160, which pre-motor filter do I need?
TriTex 907073, sold by Numatic as the Numatic TriTex filter for Henry Cordless (907073).
Which batteries fit the Numatic Henry Cordless HVB160?
904382, sold by Numatic as the Henry Cordless 36V lithium-ion battery 904382.