Fig. 1From: Surgical helmet systems in total joint arthroplasty: assessment of hood sterility and donning techniqueA, B The materials and setting of agar plate inoculation for this study. This was undertaken by exercising strict sterile precautions under laminar airflow with late fan activation. Agar plates were only opened immediately before inoculation. Pre-moistened swabs were used to collect samples from the SHS hoodsBack to article page