Acoustic lined ductwork will be cleaned with our robotic tracked vehicle, BANDY II, equipped with an apparatus which enables removal of the particulate accumulation without damaging the acoustic lining. The robot is camera-equipped which enables 100% observation during the cleaning process in addition to future documentation. Further, the robot controls provide varying degrees of agitation that protect the acoustic lining from damage during cleaning.

Metallic ductwork will be cleaned employing robotic direct contact brushing. The sanitizing of the ductwork employs a proprietary set of motorized brushes that are designed to operate and fit within the size and conditions of the ductwork. Robotics will be used to provide access to the ventilation at all existing outlets to minimize damage to the mechanical integrity of the ventilation system. These brushes will contact the ductwork on all four sides simultaneously, providing a work method that ensures particulate removal of a quality superior to traditional compressed air and hand vacuuming. These brushes render the interior surface of ductwork to its original clean, smooth condition. In addition, specialized robotic tracked vehicles will be used to provide video scanning and direct contact cleaning where applicable.

Both pressurized and cellular foam gaskets will be employed in the supply ductwork during cleaning to ensure the loosened particulate is directed to the HEPA filtration units and not allowed to enter the workplace.

A proprietary HEPA filtered vacuum air handling machine will be employed to exhaust contaminants from the ductwork as they are removed from the ductwork surfaces by robotic direct contact brushes and robots. The noise factor associated with this process has been acceptable to all our customers.

All vacuum units will utilize high-efficiency absolute filters which contain the particles (HEPA).

All particulate captured by the HEPA filtration units will be contained and disposed of at an approved site.

• Supply and exhaust air fans will be vacuumed utilizing HEPA filtered vacuum equipment.
• Fans and fan housings will be cleaned utilizing HEPA filtered vacuum equipment.
• Filter trays and housings will be vacuumed utilizing HEPA filtered vacuum equipment.
• Mixing plenums will be vacuumed utilizing HEPA filtered vacuum equipment.
• Heating and cooling coils will be vacuumed utilizing HEPA filtered vacuum equipment. If required proper coil cleaning products will be used to disinfect.

• All vacuuming and cleaning will be performed with HEPA filtered vacuum equipment. Improper fit and air leakage associated with equipment mounting will be identified and reported.

• All ventilation diffusers will be cleaned utilizing HEPA filtered vacuum equipment.

• Existing outlets to minimize damage to the mechanical integrity of the ventilation systems. A metal plate and gasket will be provided to cover all entry points into the ventilation systems. When required new access ports will be fabricated without jeopardizing the integrity of the system.

• Re-heat coils will be cleaned utilizing HEPA filtered vacuum equipment, high-pressure air and coil combs. A gasketed metal plate will be installed on both sides of all re-heat coils as required for cleaning and future inspection. If required proper coil cleaning products will be used to disinfect.

• Air intake louvre and screen vacuumed utilizing HEPA filtered vacuum equipment as required.

• At each completed stage of the sanitation procedure, a complete internal inspection is performed. After the sanitation procedure, a visual inspection is again performed with our robot, which provides a flash drive or card video of the cleaned ductwork,  or a complete visual inspection with photos supplied. In addition, all mechanical deficiencies will be identified. The results will form the basis of a concluding documented report which will be used to identify inadequacies in both the mechanical and filtration systems.