We manufacture Vertical Ceiling Laminar flow Provides an ISO certified environment within the work area with Perforated Stainless steel diffuser screen protects HEPA filter and maintains uniform airflow velocity within the work area. With combination we can give you large size units required by 6/8 Hd as well as other high speed Ampoule / Vial / Filling / Washing machines like 5'x4', 6'x4', 8'x4', 8'x6' as well as custom made sizes.