From the Field

What We're Learning

Reporting from inside the homes we measure. Real data, real findings, no scare tactics.

The Baseline Air & Health Reference

Ten pollutants. What they do to the people in your home.

The full reference: every pollutant we measure, the symptoms it causes, what the research says, and what actually helps. Built for homeowners who want to understand what is in their air and why it matters.

Open the reference

Field Note·May 2026

Houseplants Will Not Clean Your Air. Here's What Actually Will.

Houseplants barely move indoor air quality at any realistic density. Even purifiers are room-scale band-aids. The actual fix is measurement, filtration, and ventilation engineered together.

Research·April 2026

Gas Appliances and Indoor Air: What UCLA Researchers Actually Measured

UCLA researchers measured real homes with gas appliances and found NO₂ levels exceeding outdoor air standards during normal cooking. What those findings mean for your home.

Health·April 2026

The Inflammation Input Nobody Accounts For

Diet, sleep, and stress are the standard levers for managing chronic inflammation. The air inside your home runs 24 hours a day and most people have never measured it.

Guide·IAQ Pillar

Indoor Air Quality Services in Los Angeles Homes

What an IAQ assessment actually measures, what the data reveals, and how ongoing air quality management works in LA homes.

What's Actually in the Air Inside Los Angeles Homes

PM2.5, CO₂, VOCs, humidity. What we actually find when we measure the air inside LA homes. Real numbers from real assessments.

Signs Your Los Angeles Home Has Poor Indoor Air Quality

Stuffy rooms, morning congestion, dust that won't quit. What these symptoms actually indicate about your home's air, backed by data.

Indoor vs Outdoor Air Quality in Los Angeles Homes

LA has an air quality reputation. But indoor readings in local homes are often worse than what's outside. Here's why, and what the data shows.

Air Quality Testing for Homes in Los Angeles: What to Expect

What actually happens during a home air quality assessment. The equipment, the process, what you get at the end, and what it costs.

Best Air Quality Solutions for LA Homes With Kids

Children breathe faster and are more affected by poor air quality. What to prioritize in your home if you have kids, based on real assessment data.

How Wildfire Smoke Affects Indoor Air Quality in Los Angeles Homes

What wildfire smoke does to your indoor air depends on your home's envelope and filtration. Here's what the data shows in LA homes during fire season.

Why HVAC Maintenance Plays a Bigger Role in Indoor Air Quality

Your HVAC system is your primary air quality tool. When maintenance slips, air quality is the first thing affected. Here's how.

Guide·HVAC Pillar

Residential HVAC Services in Los Angeles Homes

Your HVAC system is an air quality system. How maintenance, airflow, and filtration interact, and why Baseline approaches HVAC differently.

How Often Should LA Homeowners Service Their HVAC System?

The standard answer is twice a year. The real answer depends on your home's filtration, duct condition, and what the air data shows.

Why HVAC Maintenance Matters More in Southern California

Year-round AC use, wildfire smoke, and dry air make HVAC maintenance more critical in Southern California than in most markets.

Common HVAC Problems in Los Angeles Homes

The HVAC problems we see most often in LA homes aren't breakdowns. They're silent issues that affect air quality long before they affect comfort.

Is Your HVAC System Making Your Home's Air Worse?

A running HVAC system can actively worsen your air quality. Filter bypass, duct leaks, and over-dehumidification are the usual culprits.

HVAC Upgrades That Improve Comfort in Los Angeles Heat Waves

When the Valley hits 110, your HVAC system is maxed out. These upgrades help the most, ranked by impact and cost.

The Cost of Ignoring HVAC Maintenance in LA Homes

Skipped HVAC maintenance costs more than the service call. Higher energy bills, faster equipment wear, and degraded air quality compound quietly.

HVAC Replacement vs Optimization for Los Angeles Homeowners

Your HVAC contractor says replace. The data might say optimize. How to tell the difference, and where each dollar has the most impact.

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