Open windows and doors to create cross-ventilation
Run fans to push stale air outside
Use an air purifier with a HEPA and activated carbon filter
Remove and wash curtains, blankets, and other fabrics
Vacuum carpets, rugs, and upholstered furniture
Mop hard floors with a mild cleaning solution
Empty trash and remove any odor sources
Clean ashtrays, pipes, and smoking devices
Wash walls, countertops, and other hard surfaces
Place bowls of baking soda around the room
Use activated charcoal to absorb odors
Boil vinegar or place vinegar bowls in affected areas
Burn unscented candles only if safe and permitted
Use odor-neutralizing sprays designed for smoke
Replace HVAC filters
Run the HVAC system with fresh air intake if available
Seal and store any remaining cannabis in airtight containers
Wash clothing and bedding that may hold the smell
Clean inside cars or bags if the odor spread there
Repeat cleaning until the smell is gone