VPD Calculator

How to Adjust Your VPD

To maintain optimal VPD levels for your indoor grow, focusing on humidity control is the most practical method. If you keep your home temperature around 68°F, this helps your grow area stay below 76°F, and you can easily adjust humidity with a humidifier.

 

For homes kept warmer, around 75°F, it’s even more important to monitor and control humidity. Here’s how you can manage it:
 

  • Humidifier: Increase the humidity to match your VPD target, as higher temperatures will often require higher humidity to maintain the right balance.
     
  • Dehumidifier: If your space becomes too humid, a dehumidifier can help bring it down to the desired level.
     
  • Air Conditioning: While controlling temperature, ensure proper airflow and circulation to prevent hot spots.
     
  • Fans: Use fans to improve air circulation and help distribute the temperature and humidity evenly throughout the grow area.
     

By monitoring and adjusting the humidity with a humidifier or dehumidifier, you can maintain the optimal environment for your plants, even in warmer home conditions. Consistent checks and tweaks will keep your VPD within the desired range, ensuring healthy plant growth.

Tested & Recommended Climate Control Products

Listed below are some of the tools we utilize to manage our clients' home growing environments, as well as those currently in use in our own setups. Every product we recommend is either presently used by us or has undergone rigorous testing and approval for use. Our focus is on ease of use, reliability, availability, and cost.

 48"x36"x72 Grow Tent 
with Germination / Seedling Area
This humidifier is the tops! Connects to your Smart Controller System and the Vivosun App
This handy Dehumidifier will help those in more humid environments keep your environment in range. 
Smart Controller with
4" Ducted Fan (Ultra Quiet)
Oscillating Fan to simulate natural breeze that plants need to strengthen and enhance themselves against pests and disease.
Don't have a tent? Place this hydrometer near the top of your system to monitor your VPD
This humidifier is our second choice for growers who want to save a bit more! It also connects to the app Vivosun App so you can monitor it from your phone.