The primary focus of the Lok Family of products from Upsite Technologies is to reduce the amount of bypass airflow. “Bypass airflow” is any conditioned air which did not reach the target appliance in data centres which requires cooling. For example
Conditional air can escape from cable cut-out in raised-floors
Hot-air in hot aisle could seep through unused racks spaces and mix with the conditioned air in the cold aisle before the cold air cool the valuable IT equipments.
KoldLok
The KoldLok family of grommets effectively seal cable cut-outs in data centres, while the cable cut-outs remain very serviceable. Designed by data centre industry veterans in Upsite Technologies (founded by the same founder of Uptime Institute), they understand a products capability to seal the cut-out is only a small part of the equation. Have you ever seal a cable-cut out only to have contractors, administrators or other IT equipment users remove it and put it aside? The well thought-out design of the KoldLok grommets allows it to maintain in place, sealing the cut-out, while operators can still easily pull cables in and out.

Run a cable through a KoldLok sealed cable cut-out
HotLok
The HotLok 1U and 2U blanking panels are very effective in sealing unused rack space in data centres. Not only does it seal effectively, the well thought-out design also ensures smooth operation for users.
It is not uncommon to find blanking panels which still requires screws and bolts. Installing a HotLok blanking panels takes less than a second! Stack them and install multiple panels in seconds!

Installed three 2U HotLoks in under 5 seconds
HotLok is even design with clean-room, mission critical data centres in mind. We all know that cardboard boxes are a source of debris. Unpacking cardboard boxes often lead to pieces of cardboard box scattered all over the room. This is why HotLok is designed to be stackable. Installer of HotLoks can unpacked the HotLok blanking panels outside their facility and easily transport them into the data centre facility.