If you have questions about our products, Fill out the form below and we will answer any questions you have. Tips: Fields marked with*are required. Class II B2 Biological Safety Cabinet Exhaust mode:100% outside Cleanliness:Class 100@≥0.5μm (US Federal 209E) Number of colonies:≤0.5/dish per hour (Φ90㎜ Petri dish) Material:All steel structure *Subject: *Your Name: User type:PersonalBusinessDistributor *E-mail: *Phone: WhatsApp: Skype: Company: *Content: *Captcha:Math Captcha 3 + 4 = Submit Δ