What size shop vac do I need?

Small (4-6 gallon) for benchtop tool collection and light cleanup. Medium (10-14 gallon) for general workshop and garage use. Large (16+ gallon) for construction sites and heavy debris. For most home workshops, a 10-14 gallon shop vac hits the sweet spot of capacity and portability.

Can I use a shop vac for water?

Yes — most shop vacs are rated for wet and dry pickup. Remove the paper/HEPA filter before wet pickup to prevent damage. Use the foam sleeve filter instead. After wet pickup, dry the tank and filter completely to prevent mold. Never vacuum flammable liquids or hot ashes.

Best Shop Vacuums 2026