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Assess
We evaluate the child's room, existing HVAC system, filtration, comfort, humidity and indoor air environment.
Little Lungs designs, installs and verifies quieter, steadier, cleaner-feeling bedrooms and nurseries — climate control and indoor air quality sized to one child's room.
Little Lungs exists to make a child's room quiet, steady and cleaner-feeling — and to measure it so you don't have to take our word for it.
We combine room-by-room climate control, filtration and air purification with a parent's instinct, and we size every system to the room with a Manual J calculation — because an oversized unit is louder and leaves the room damp.
Little Lungs is a premium indoor air quality and climate control company built exclusively for children's rooms. We assess, optimize and verify the air in a child's room — from newborns to teenagers.
We evaluate the child's room, existing HVAC system, filtration, comfort, humidity and indoor air environment.
We design a personalized combination of climate control, filtration and air purification solutions around the room and the child.
We re-measure the finished room against what we measured at the start and give you the before-and-after in writing.
We specify Mitsubishi Electric ductless systems and Aerus Air Scrubber Plus air purification technology, selected for the room's calculated load, sound at the crib, and filtration needs.
Filtration sized to the room's volume, so there is less visible dust in the place your child spends hours every night.
Stable temperature, improved humidity and quieter equipment help create a more comfortable sleep environment.
An inverter system holds the setpoint by slowing down, not cycling on and off — so the room stays steady and you can hear the monitor.
A written before-and-after for the room, so you know what changed and by how much.
Every family comes to Little Lungs for a different reason. They share one thing: they want the room to be quiet, steady and clean-feeling, and they want it checked.
Preparing the nursery before their baby arrives.
Focused on a comfortable, quiet room for sleep.
Who want filtration sized to the room and no ozone-producing devices anywhere near it.
Who take indoor air quality as seriously as nutrition and water.
Founded by Matt and Masha Alba — parents of twins and a toddler — Little Lungs began with a problem they experienced personally.
With 20 years in residential HVAC and a parent's instinct, they built something that didn't exist: a company dedicated entirely to the air in a child's room.
Little Lungs designs, installs and verifies the air and climate in one room: your child's.
We are a Los Angeles company built around the question parents type into their phone at 2 a.m. — why is this room too hot, too loud or too dusty, and what actually fixes it. The answer is rarely a gadget. It is a room that was measured, a system that was sized for that room, and a result that was checked afterward. That is the whole business.
A comfortable child's room is not one number; it is five conditions held steady at the same time. The published reference ranges below come from pediatric, federal and state sources, not from us. The right-hand column is what we most often find breaking them in Los Angeles homes.
| Condition | Reference range | Source | What usually breaks it in LA homes |
|---|---|---|---|
| Temperature | The AAP advises against overheating and does not prescribe a single number; most pediatric sleep guidance lands at 68–72°F (20–22°C). | American Academy of Pediatrics | An upstairs room on a single-zone system; a west-facing window; the September–October heat that hits the coast later than the Valley. |
| Humidity | 30–50% relative humidity. | U.S. EPA | Marine-layer mornings in the beach cities; dry Santa Ana wind days; an oversized AC that cools the air without removing moisture. |
| Sound at the crib | Lower is better. A whisper is roughly 30 dB(A); a window AC is typically 50–60 dB(A). | Manufacturer sound data | Window and portable units, and an outdoor compressor mounted on the wall behind the nursery. |
| Particles | HEPA or MERV 13 filtration sized for the room; in California, only CARB-certified air cleaning devices may be sold. | EPA · California Air Resources Board | Ozone-producing "ionizers", undersized plug-in purifiers, and a leaky return pulling dust from the attic. |
| Airflow direction | Supply air should move parallel to the crib, never directly across it. | Installer practice | A register or wall unit placed above the crib because that was the easiest wall to reach. |
Reference ranges are design targets, not guarantees. Every room is different, which is why we measure yours before recommending anything.
Three steps, in this order, every time. The order matters: a system chosen before the room is measured is a guess with a warranty card.
We measure the room itself — size, sun exposure, insulation, the existing HVAC and filter, humidity, and the sound level at the crib position. Then we run a Manual J load calculation for that one room, not the whole house.
We design the combination the room needs: ductless climate control from Mitsubishi Electric, filtration, and air purification using Aerus Air Scrubber Plus technology — sized to the calculated load and placed so the air never crosses the crib.
After installation we re-measure the same conditions we measured at the start and give you the before-and-after in writing, so you know what changed and by how much.
Most Los Angeles homes run one thermostat for the entire house, so the nursery gets whatever the hallway gets. In a 1950s–70s South Bay tract home with a second-storey addition, that usually means the upstairs room runs several degrees warmer than the thermostat reads and the compressor cycles all night trying to close the gap. A ductless single-zone system fixes the room directly — and because it is an inverter system, it holds the setpoint by slowing down rather than switching off and on.
Three details decide whether that works:
The numbers behind those three details are in our guides: what size mini split a child's room needs, and the cost of a mini split for one child's room in Los Angeles.
We serve families across the Los Angeles coast and Westside. We do not have a public showroom; every project starts in your child's room.
Manhattan Beach, Hermosa Beach, Redondo Beach, Torrance, El Segundo and the Palos Verdes Peninsula. Salt air means coastal-rated outdoor units; beach-city additions often have no ductwork at all.
Santa Monica, Venice, Mar Vista, Culver City, Brentwood, Pacific Palisades and Playa Vista. Pre-war Spanish and Craftsman homes with no ducts; Santa Monica's own permit and noise rules for outdoor units.
Beverly Hills and neighboring West Hollywood and Bel Air. Architectural review on visible exterior equipment; larger lots with longer line-set runs; nurseries converted from former offices with no supply register.
Permits, inspections and heat-pump rebates differ by city and by utility (LADWP or Southern California Edison). We will tell you which applies to your address during the Air Check.
A ductless wall-mounted mini-split, sized for the room by a Manual J calculation, placed so supply air does not blow across the crib, and run in quiet mode. Window and portable units are the loudest options in the room and the hardest to hold at a steady temperature overnight.
Yes, when it is sized correctly. The inverter compressor holds a setpoint by slowing down instead of cycling off and on, which keeps the temperature steadier and the room quieter. An oversized unit undoes both advantages: it short-cycles and leaves the room clammy.
Most pediatric sleep guidance lands at 68–72°F; the American Academy of Pediatrics does not set a single number but advises against overheating. The harder problem is holding that temperature in a specific room through a Los Angeles night, which is what the Air Check is for.
It can help with visible dust and pollen when it is sized for the room's volume and is on the California Air Resources Board's certified list. Avoid anything that produces ozone — those devices cannot legally be sold in California. A purifier is a supplement to filtration in the room's air path, not a replacement for it.
Yes. New HVAC equipment requires a mechanical permit throughout Los Angeles County, but the department and the process depend on the city — the City of Los Angeles (LADBS), Beverly Hills, Santa Monica and each South Bay city run their own. We confirm which one applies to your address during the Air Check.
A visit to your child's room to measure temperature, humidity, airflow, sound at the crib and the current filtration, a Manual J load calculation for that room, and a written explanation of what we found and what would change it. There is no cost and no obligation to go further. See everything the Free Air Check covers.
Tell us about your home and your child's room. We will measure it, explain what we find, and tell you plainly what would make it quieter, steadier and cleaner-feeling — with no pressure to go further.
Get Your Free Air Check Serving the South Bay, Westside and Beverly Hills.