![What is this white box on a pole with ventilation, a locked door, what appears to be two lights, and two unknown cylinders? : r/whatisthisthing What is this white box on a pole with ventilation, a locked door, what appears to be two lights, and two unknown cylinders? : r/whatisthisthing](https://preview.redd.it/what-is-this-white-box-on-a-pole-with-ventilation-a-locked-v0-kautwahpqaza1.jpg?width=640&crop=smart&auto=webp&s=a4c1fdf580580361a2cd2abf1a85d3478474ff41)
What is this white box on a pole with ventilation, a locked door, what appears to be two lights, and two unknown cylinders? : r/whatisthisthing
![Blog | Commercial Kitchen Design | 10 Mistakes to Avoid when Buying Kitchen Ventilation | Target Commercial Induction Blog | Commercial Kitchen Design | 10 Mistakes to Avoid when Buying Kitchen Ventilation | Target Commercial Induction](https://images.squarespace-cdn.com/content/v1/55a66241e4b0c39cd1989bb7/1571393392323-S0KESVY280W3UGYRA2SB/20171207_172141.jpg)
Blog | Commercial Kitchen Design | 10 Mistakes to Avoid when Buying Kitchen Ventilation | Target Commercial Induction
![Engera Bathroom Door Air Vent Grille Two Sided Ventilation Cover for Restroom, Warehouse, Storage Doors | Interior Door Transfer Grill 453mm x 91mm (18.1"x3.6") - - Amazon.com Engera Bathroom Door Air Vent Grille Two Sided Ventilation Cover for Restroom, Warehouse, Storage Doors | Interior Door Transfer Grill 453mm x 91mm (18.1"x3.6") - - Amazon.com](https://m.media-amazon.com/images/I/61Lr5Pr0gbL.jpg)
Engera Bathroom Door Air Vent Grille Two Sided Ventilation Cover for Restroom, Warehouse, Storage Doors | Interior Door Transfer Grill 453mm x 91mm (18.1"x3.6") - - Amazon.com
![Active Ventilation Box is 19 in. Wide x 19 in. Long x 12 in. High Aluminum Roof Curb RC-16-H12 - The Home Depot Active Ventilation Box is 19 in. Wide x 19 in. Long x 12 in. High Aluminum Roof Curb RC-16-H12 - The Home Depot](https://images.thdstatic.com/productImages/f410fc08-5050-44b5-9393-5c19f8eacbf1/svn/active-ventilation-rooftop-venting-rc-16-h12-66_600.jpg)
Active Ventilation Box is 19 in. Wide x 19 in. Long x 12 in. High Aluminum Roof Curb RC-16-H12 - The Home Depot
![Where in this box could I add more ventilation holes? I got some mold while I was away for 10 days. : r/roaches Where in this box could I add more ventilation holes? I got some mold while I was away for 10 days. : r/roaches](https://i.redd.it/v561y8srq0nz.jpg)
Where in this box could I add more ventilation holes? I got some mold while I was away for 10 days. : r/roaches
![Is this a safe ventilation setup? I live in an apartment and don't have many options for ventilation. Planning on running this several hours per day. The vent goes directly outside. That's Is this a safe ventilation setup? I live in an apartment and don't have many options for ventilation. Planning on running this several hours per day. The vent goes directly outside. That's](https://preview.redd.it/is-this-a-safe-ventilation-setup-i-live-in-an-apartment-and-v0-7fq58vobf8b91.jpg?width=640&crop=smart&auto=webp&s=efe07f7b0feddb63a72bb487f74a776f64319d1f)
Is this a safe ventilation setup? I live in an apartment and don't have many options for ventilation. Planning on running this several hours per day. The vent goes directly outside. That's
![Speaker Port Tube Bass Reflex Vent Ventilation Connector 4-6" 41x80mm Subwoofer Woofer Box Accessories - Buy Port Tube,Speaker Tube,Bass Reflex Vent Product on Alibaba.com Speaker Port Tube Bass Reflex Vent Ventilation Connector 4-6" 41x80mm Subwoofer Woofer Box Accessories - Buy Port Tube,Speaker Tube,Bass Reflex Vent Product on Alibaba.com](https://sc04.alicdn.com/kf/Hddd6a53183b541a79a7dfa06f7cc1a1aJ.jpg)
Speaker Port Tube Bass Reflex Vent Ventilation Connector 4-6" 41x80mm Subwoofer Woofer Box Accessories - Buy Port Tube,Speaker Tube,Bass Reflex Vent Product on Alibaba.com
![UNIC R 400º/2H simple aspiration ventilation box (reaction). Simple aspiration ventilation box with a built in fan in its interior approved by AFITI LICOF. UNIC R 400º/2H simple aspiration ventilation box (reaction). Simple aspiration ventilation box with a built in fan in its interior approved by AFITI LICOF.](https://www.morguiclima.com/images/stories/virtuemart/product/UNIC-R.jpg)