Remove the burnt source immediately
Open all windows and doors
Turn on exhaust fans and ceiling fans
Run air purifiers with HEPA and activated carbon filters
Replace HVAC filters
Clean soot and residue from walls, ceilings, and surfaces
Wash curtains, bedding, and clothing
Vacuum carpets, rugs, and upholstery with a HEPA vacuum
Sprinkle baking soda on carpets and upholstery, then vacuum it up
Place bowls of white vinegar around the house
Place activated charcoal or odor absorbers in affected rooms
Boil water with lemon peels or vinegar on the stove
Wipe hard surfaces with vinegar and water
Clean inside the oven, microwave, and stovetop
Empty trash and remove burnt items from the home
Wash dishes, cookware, and utensils
Launder or replace smoke-absorbed fabrics
Clean air vents and duct openings
Use an ozone machine only if professionally recommended and the area is unoccupied
Call a professional restoration service if the smell persists