Wet Dry Hepa Vacuums

Frequently Asked Questions
What you should not vacuum with a wet/dry vac includes flammable liquids (like gasoline), hot ashes, toxic materials (like asbestos), strong corrosives (like bleach), and extremely sharp objects, as these can cause fires, health hazards, or severe damage to the machine.
When buying a wet/dry vacuum, you should look for a model that balances suction power, tank capacity, filtration, and portability according to your specific cleaning tasks.
The two holes on a wet/dry vacuum serve as the intake port for vacuuming up debris and liquids and the exhaust port, which converts the machine into a powerful blower when the hose is attached.
Yes, you must remove the dry-use paper/cartridge filter when vacuuming water to prevent it from becoming waterlogged, ruined by mold, and potentially damaging the motor. For wet pickups, you should typically use a foam sleeve (a separate type of filter designed for liquids) to protect the motor from water while allowing the liquid to pass into the tank. Some specific HEPA filters may be designed for both, but you must confirm your manual for proper use.
The average lifespan of a residential wet/dry vacuum is typically between 5 and 10 years with proper maintenance, while commercial-grade units often last a decade or more.
Your wet/dry vacuum is likely blowing out dust because of a filter problem: the filter may be clogged, damaged (ripped or has a hole), missing, improperly installed (allowing air gaps), or the dust you are vacuuming is too fine for the current filter.