This cleans out any pesticide residue hanging on the sides of the washing machine tub. Otherwise, residue can release during later wash loads, contaminating clothes in the washer at that time. Line-drying the laundered clothes removes additional pesticide residues that may be still in the clothes. Fresh air circulating through the clothes removes residue, as does the ultraviolet light present in sunlight. However, if line-drying is not practical, using a clothes dryer is an acceptable alternative.
Laundering removes the bulk of the pesticide residue so what is removed by drying is small.
Realize that laundering pesticide-contaminated clothing does not eliminate all the pesticide residue in the clothing, but laundering does reduce it enough to make the clothing safe to wear. It is designed to be placed on or near the washing machine so that the person washing contaminated clothing can refer to the proper procedure. It should be placed in a location away from any dials or other controls, as well as electrical components in the machine. The magnet is being distributed free of charge at Commercial Pesticide Training and Certification Clinics.