EMP samples are collected at least weekly and include samples at eye level, below and above.
Greater than 55 swabs are taken per 50,000 sq. ft. per week. (should be focused on risk assessments).
As a facility ages, swabbing frequency and levels are increased to reflect increased risks.
Swabbing should focus on post lethality/high hygiene areas.
Refer to FDA Lm Draft Guidance