FIG. 2.

Summary of culture results obtained for the detection of B. atrophaeus from surfaces in three experimental room trials before and after use of the foam decontaminant. Materials were contaminated by aerosolization of B. atrophaeus spores into the room, followed by settling of the bioaerosol onto surfaces in the room. Surface samples (929 cm² [1 ft²]) were collected with Heavy Wipes, swipes, and SSP kits prior to decontamination (pre-decon). Surfaces were treated with the foam and sampled postdecontamination (post-decon). All postdecontamination samples contained no culturable B. atrophaeus (lower detection limit range, 10 to 40 CFU per sample). Bar heights represent the mean (log₁₀) of three samples ± 1 SE.