How to make your grow room silent

Published Feb 24, 2019 04:00 p.m. ET
Including DIY Fan Silencer Box Instructions

 Ventilation and lighting are two essential components of any grow room. Unfortunately, the can also be the loudest. In today's day and age, where the majority of people live incredibly close to their neighbors, it has become important for many growers to try to learn new ways to create a soundproof grow room. The following is a list of tips and tricks to help guide you on the journey of creating a completely soundproof grow room that will allow you to continue to function as discreetly as possible.

1. Buy A soundproof grow tent
A soundproof grow tent is an ideal option for those who have the extra funds for the initial purchase. They can come in a wide range of sizes to suit just about any need or space and are completely silent even when standing next to them. They also offer additional features such as built-in lights, fans, and a shiny inside that maximized the strength of the bulbs and helps to hold in humidity. Grow tents provide some of the fastest setups with little to no effort and help to ensure the ideal environment for a marijuana plant to flourish.

Where To Purchase:

2. Silent fans for a grow room
Fans are notoriously loud, often used as a tool to create white noise purposely to drown out other sounds. Unfortunately, most silent fans for a grow room are designed specifically for this purpose and can come with a higher than average price tag. A silent fan will have no grinding and provide a more efficient amount of airflow which is why they canbe so quiet.

Where To Purchase:

3. Soundproof your room
Soundproofing a room can be challenging depending on what kind of setup you have and what level of sound resistance you are aiming for. It will always be easier to keep the silence from outside than it will be to keep it from other rooms within a home. Your best option if living in a shared residence is to soundproof your room by growing within a closet that will buffer any noise. If a closet isn’t an option or is perhaps right next to whomever you are trying to keep the noise from than your next option is to soundproof your room. You can do this using egg cartons. The shape they provide will bounce any sound in various directions which will make the sound dissipate within the room rather than traveling outside of it. For floors with gaps, you can purchase weather stripping to help seal them up. Any openings will allow the sound more opportunity to escape so make sure it is as sealed as possible. Sometimes weather stripping is inappropriate due to the size of the gap at the bottom of the door. Most residents are now required to be equipped with fireproof doors which have a one-inch space at the bottom of them. In that case, you may want to shop for a door sock that will rest permanently at the bottom of it and help muffle any sound before it escapes.

4. Silent Lights for A Grow Room
Lights are notorious for the amount of heat that they create. Many of the strongest high-powered light fixtures on the market come equipped with heavy-duty circulation fans that are capable of dissipating the hot temperature as they are created to keep the risk of fires at a minimum. While these large, expensive lights are ideal for some, for those who are trying to be more discreet, they will likely do more harm than good. When purchasing silent lights for a grow room you will need to look for a fixture that does not come equipped with a fan and provide one yourself, or spring a little extra cash for one that is equipped with a specially designed silent fan.

Where to Purchase:


Step by step guide to build a DIY fan silencer box

If you have already invested in a heavy-duty fan for circulation than you may prefer to work with what you already have. This is where a DIY fan silencer box will come in handy. Though it isn’t pretty by any means, it will get the job done for a fraction of what it would cost to buy a new one.


  • 1 sheet of half inch particle board
  • Wood ½ inch (enough to make a cube box that will fit your fan within it)
  • Drill
  • 1 pack of 1.2-inch wood screws
  • Caulking gun
  • Caulk
  • 1 sheet of sound board or egg crate foam (either will work)
  • 1 noisy fan
  • 4 metal brackets


  1. Cut 5 even cubes worth of wood that will be large enough to fit your fan inside once put together. 1 of these pieces of wood will need a circle in the center of it for the face of the fan to suck through.
  2. Use a drill to screw the squares together using ½ inch wood screws. When you are finished, 1 side of the square will be left open.
  3. Caul the corners and edges of the wood box. Allow 20 minutes to set.
  4. Cut the particle board slightly smaller than you did the wood and slide a section of the particle board against each wall of the wood box using caulking to attach them and keep a seal. Allow another 20 minutes to set.
  5. Now you are ready to install your fan with the exhaust pointed upwards out of the top opening. Use three or four metal brackets and measure them and install them according to your fans size. Once finished, drop the fan inside and screw the brackets to the outside of the fan to hold it into place.
  6. Cut a piece of the egg foam that will cover the opening. Cut a circle in the center of it to make room for the exhaust spout to poke out. Use screws to attach this piece which will seal up the entire box.
  7. Plus it in a forget about it! You have now made your very own DIY fan silencer box which should dramatically improve the overall soundproofing of your room.


Related posts