Get a 1/2 gallon hand spray pressure pumps. Also a 5 gallon bucket.
Fill the bucket with 10% household bleach to water and the sprayer.
10 minute wait for sterilization.
Vent the laundry room and wash (shortest cycle hottest water) the tyvek with lots of vinegar. Residual bleach and vinegar will cause toxic gas, but tyvek will survive to fight another day.
Chlorine gas. Are you trying to reenact WWI?