The measurable standard
for home health.

We measure your home's air, establish a performance baseline, and continuously raise the standard.

Establish Your Baseline — $195 How the partnership works
Baseline Score 74 / 100 Sample report
PM2.5 14.2 μg/m³ Above EPA 9.0 threshold
CO₂ Level 683 ppm Below 800 ppm sleep threshold
Humidity 26% Below 30% optimal range

Most homes are
never measured.

The air in your home is actively shaped by your HVAC system, your building materials, your daily activity, and what drifts in from outside. Each home is different. None of them come with a dashboard.

2–5x
higher pollutant concentrations indoors vs. outdoors, per EPA research
U.S. EPA
800 ppm
CO₂ threshold above which sleep quality is measurably affected
ASHRAE 1837-RP
30–50%
optimal indoor humidity. LA's dry climate routinely pushes homes below it
EPA / ASHRAE
90%
of time Americans spend indoors. Indoor air is almost never measured
U.S. EPA

U.S. Environmental Protection Agency · ASHRAE 1837-RP · NIH/PMC

Fine Particles (PM2.5)
Particles fine enough to reach the bloodstream enter through gaps, ductwork, and HVAC returns. In LA County, wildfire smoke and traffic exhaust are persistent sources. Research found 85% of homes had indoor PM2.5 above the EPA's own outdoor air standard.
VOC Accumulation
EPA research found VOC concentrations inside homes 2 to 5x higher than outdoors regardless of location. Sources include paints, cleaning products, furnishings, and personal care products. During painting or cleaning, levels can spike to 10x outdoor concentrations.
CO₂ and Ventilation
Research across 100+ households found bedroom CO₂ above 1,150 ppm measurably disrupts sleep and next-day cognitive performance. Most homes with closed doors and no mechanical ventilation regularly exceed that level overnight.
Indoor Humidity
LA's dry climate, compounded by air conditioning and forced-air heating, routinely pushes homes below the 30 to 50% optimal range. Low humidity dries the mucous membranes that defend against airborne pathogens and is linked in peer-reviewed research to disrupted sleep and increased infection vulnerability.
Radon
A naturally occurring radioactive gas and the leading cause of lung cancer in non-smokers, responsible for approximately 21,000 deaths per year in the US. It enters silently through foundation cracks and soil contact. Most California homeowners have never tested. Most who have elevated levels had no idea.
Los Angeles highway obscured by wildfire smoke and orange haze

Southern California

The outside air finds its way in.
Baseline measures what gets through.

Clean MERV air filter close-up showing filtration media
Filter condition
Technician measuring home air quality with anemometer
Room measurement
Baseline
Baseline Score 74 Your home, quantified.
Assessment Report
Pillar Scores
Ventilation
43
Filtration
82
Humidity
29
Each pillar maps to an upgrade package.
Your scored report

How the Partnership Starts

Establishing your baseline is the entry point. Not the product.

Most home service companies show up, do a job, and leave. Baseline is different. The assessment establishes your home's starting point. A measured, documented record of where things stand. Everything after that is optimization, maintenance, and improvement over time.

01
Indoor Air Quality Measurement
We deploy calibrated sensors throughout your home measuring PM2.5, VOCs, CO₂, NOx, temperature, and humidity at the room level, not just at the thermostat. Data is collected over the visit window and compiled into your Baseline Report.
02
HVAC Visual Inspection
A trained technician assesses filter condition, duct visual, system age, airflow by room, and thermostat configuration. If the data or inspection suggests deeper mechanical issues, we recommend a targeted diagnostic as a next step. Clearly scoped, never a surprise.
03
Your Baseline Report and Partnership Plan
A scored performance report across three pillars: ventilation, filtration, and humidity. Category breakdowns, prioritized action plan, and a clear recommendation for the Baseline Home Plan and any packages relevant to what we found.
$195 flat, applied toward any service
Optional Add-On
Radon Assessment
Radon requires a fundamentally different measurement process. We place long-term sensors throughout your home and allow a 7 to 14 day dwell period — the minimum needed for a statistically valid result. Results are incorporated into your Baseline Report, and Baseline evaluates the trend data to provide a clear action plan. For homes in communities near the Simi or San Fernando valleys, where soil geology elevates risk, this add-on is strongly recommended.
+$295
Total with add-on: $490
Establish Your Baseline — $195 90-minute visit · 15-mile radius · Woodland Hills, CA
Baseline Score 74 Your home, quantified.
Ventilation
43
Filtration
82
Humidity
29
Each pillar maps directly to an upgrade package. Low scores have a clear path forward.

Your Home, Quantified

Three pillars.
One honest number.

Your Baseline Score is built on three measured pillars: ventilation, filtration, and humidity. Each one maps directly to an upgrade package. Low ventilation score means CO₂ or VOC levels that warrant an ERV. Low filtration score means your HVAC system is not capturing what it should. Low humidity score means conditions that compromise sleep, immunity, and comfort every single night.

The score is not a snapshot you file away. It is the starting point for a conversation about what your home needs, in what order, and how a Baseline Home Plan keeps it optimized year over year. EPA research shows indoor pollutant levels vary 2 to 5x from home to home. Your number is yours alone.

Get the Free Guide
Family relaxing in warmly lit home interior at night

You can't improve
what you haven't measured.

Baseline changes that.

Membership Plans and Upgrade Packages

Three plans.
One ongoing relationship.

Your assessment identifies exactly what your home needs. From there, you choose the level of ongoing monitoring, service, and support that fits your home and how you want to manage it. The upgrade packages address what the assessment found — each one solves a specific, measured problem.

The Membership
Baseline Home Plans
Three tiers. All include sensors, monitoring, and an ongoing service relationship.
Every Baseline membership includes Baseline-owned sensors installed in your home, ongoing air quality monitoring, and a scheduled service relationship. The plan you choose determines how many sensors, how often we visit, and how deeply we manage your system over time.
  • Monitoring Plan — Entry-level membership. One room monitor, annual re-assessment visit, filter reminders, and member pricing on all upgrades and services
  • Managed Air Plan — Central and room monitoring, two filter swaps per year with filters included, mid-year system inspection, and CO₂/VOC re-validation each visit
  • Performance Plan — Full coverage. Central plus two room monitors, duct pressure testing, annual radon retest, ventilation balancing, and a guaranteed 48-hour response window
If Your Assessment Finds It
Radon Protection
Triggered by assessment results at or above the EPA action level of 4 pCi/L. We design and install a sub-slab depressurization system, the most effective mitigation method available, and retest after installation to confirm reduction. Permanent radon sensors installed as part of your Baseline Home Plan monitor levels continuously going forward. Radon is the leading cause of lung cancer in non-smokers. It has no smell, no color, and no symptoms until it is too late. If the assessment finds it, this is not optional.
Upgrade Packages

Triggered by what your assessment finds. Each addresses a specific, scored pillar. All three work together as a complete system.

+
Fresh Air and Ventilation
CO₂ control · VOC dilution · ERV installation
Most Common
We design and install an energy recovery ventilator (ERV) sized to your home and calibrated to your existing HVAC system. An ERV brings filtered outdoor air in while recovering heating or cooling energy from outgoing air, keeping the exchange efficient year-round. This dilutes CO₂ and VOC buildup and keeps bedroom levels in the range where sleep and cognitive performance are not compromised. ASHRAE research indicates most homes need at least double their current ventilation rate to maintain healthy bedroom CO₂. This is the upgrade most assessment results point to first.
+
Advanced Filtration
PM2.5 reduction · Particle control · Wildfire defense
We upgrade your HVAC filtration to a high-efficiency system appropriate for your equipment and validate the result with sensor data, not just a filter spec sheet. Where HVAC filtration alone cannot reach target PM2.5 levels, we recommend supplemental HEPA filtration for key rooms. Research found HEPA filtration improved asthma symptoms and quality of life in children with uncontrolled asthma. Filtration is the most direct lever for reducing indoor particle exposure, particularly during wildfire season in LA County.
+
Humidity Control
Whole-home humidification · Fan-assisted installation
We install a fan-assisted evaporative whole-home humidifier integrated with your HVAC system. Fan-assisted means it operates any time the air handler is running, not only during heating cycles, which matters in LA where cooling runs far more than heat. This type of humidifier works through natural evaporation, so minerals stay in the pad rather than entering the air you breathe. We do not install ultrasonic humidifiers. Triggered by humidity assessment findings below the 30 to 50% range that supports immune function, sleep quality, and respiratory health. Pad replacement is included in your annual Baseline Home Plan visit.
+
Continuous Monitoring
Whole-home sensor network · Year-round visibility
We install permanent calibrated sensors throughout your home and ductwork measuring PM2.5, VOCs, CO₂, temperature, and humidity year-round. Your data is continuously monitored and flagged between visits if values shift meaningfully. For homes that want a live picture, not just an annual snapshot, and for members who want to see the impact of their upgrade packages over time with real before-and-after data.
Why This Exists

It started with a
Nextdoor thread.

In 2022, a chance conversation online led to the discovery that our family home in West Hills had nearly four times the EPA's maximum recommended radon level. Our kids had been breathing it for years. We had no idea. Baseline exists because protecting your family's health should not depend on a lucky thread.

“Have you ever tested your home for radon? It is a naturally occurring gas that is the leading cause of lung cancer in non-smokers.”

14
picocuries per liter found in our home. The EPA action level is 4 pCi/L. We were at nearly four times that. No symptoms. No warning. No way to know without testing.
21K
Americans die from radon-related lung cancer each year per the EPA. It is the leading cause of lung cancer in non-smokers. Most of those homes were never tested.
90%
of a person's life is spent indoors. The air quality in those spaces is almost never measured, tracked, or actively managed. That is the problem Baseline exists to solve.
HVAC technician servicing outdoor air conditioning unit
Modern Los Angeles home exterior at dusk

baselinehomehealth.com

Your home deserves a
long-term partner.

Not a one-time inspection. Not a sales visit. A measured starting point, a clear plan, and ongoing support to keep your home performing at its best, year after year.

Establish Your Baseline — $195

90-minute visit · 15-mile radius · Woodland Hills, CA.

Starting with air. Building toward whole-home health.

Get in Touch
Questions about the assessment, service area, or whether Baseline is right for your home.

Call or Text 818-237-3404
Book a Call Schedule 15 minutes via Calendly