Sendal Breathe™ is an intelligent home control software platform that actively manages home comfort, indoor air quality, and moisture—working with the HVAC systems, sensors, and IAQ products you already trust.
Most homes rely on fixed ventilation runtimes and disconnected controls. Sendal replaces assumptions with real-time intelligence—continuously adjusting how a home breathes based on actual conditions inside and out.
Breathe software solution connects with your existing HVAC system. It takes real-time pollutant measurements, analyzes the data to create a plan, and then automatically responds to remediate – keeping your home comfortable and healthy.
Sendal intelligently manages temperature and humidity together, preventing swings that lead to discomfort, condensation, or wasted energy.
"The Breathe service approach to managing energy and indoor air quality is exactly in line with our path to an intelligent home."
Sendal coordinates ventilation, filtration, and outdoor air intake based on real-time indoor and outdoor conditions.
"The [Breathe] system is very automated and does not require any direct management on my part, which is great. It has been working excellently and I frequently notice the fans and fresh air system automatically turned on when the air quality has dropped and it makes a big difference."
"Sendal improved the IAQ and reduced energy usage, making conversations with customers about HVAC options an easy discussion. Clients don’t want to hear about the parts and pieces, they want to know they are building a home with the best possible air quality."
Sendal continuously monitors conditions that lead to mold, moisture damage, and unhealthy living environments, and acts before they become expensive failures.
"I worked with Sendal to get a monitoring system in place that had the ability to control my ventilation system based on the actual IAQ...the IAQ in our house has improved dramatically."
Sendal Inc. today launched Sendal Aware (July 7, 2026), a proactive monitoring service for HVAC and home-service companies that builds on its Breathe and Balance offerings. Aware detects early warning signs—HVAC failures, excess heat/humidity, mold and freeze risk, power outages, poor indoor air quality, and drain-pan water—then alerts contractors (and homeowners when appropriate) so issues can be addressed earlier. The service helps contractors retain customers, create recurring revenue, and uncover service opportunities; Sendal cites >98% year‑over‑year retention from Breathe and Balance deployments. Aware is available to home service companies now; contact info@sendal.io or visit Sendal.io.
For decades, the residential building industry has leaned heavily on ASHRAE 62.2 as the reference point for indoor air quality. This has helped move homes in the right direction by requiring mechanical ventilation in tighter, more energy-efficient buildings. However, the industry has often treated compliance with ASHRAE 62.2 as if it were equivalent to delivering healthy indoor air.
The Harm Paradigm reframes indoor air quality as the cumulative effect of many small, location-specific pollution sources rather than a single metric, asking where harm to occupants is actually occurring. Breathe implements this by using distributed sensors to detect room-by-room pollutant sources and exposures in real time and respond with targeted ventilation, filtration, and humidity control to reduce health impacts rather than just meeting averages.
