--- title: AST | Home Health Box description: Sample and sense multiple particulate and gaseous pollutants in indoor environments using a single compact, portable, and virtually-silent device. image: https://www.accsensors.com/hubfs/Featured_HHB.jpg --- [Skip to content](https://www.accsensors.com/indoor_sampling#main-content) [![AST](https://www.accsensors.com/hs-fs/hubfs/AST.jpg?width=2303&height=774&name=AST.jpg)](https://www.accsensors.com/?hsLang=en) - [Products](https://www.accsensors.com/products) Show submenu for Products - [UPAS v2.1](https://www.accsensors.com/upasv2.1) - [UPAS v2.1 PLUS](https://www.accsensors.com/upasv2.1plus) - [UPAS v2.0](https://www.accsensors.com/upasv2.0) - [Home Health Box](https://www.accsensors.com/indoor_sampling) - [Inlets and Accessories](https://www.accsensors.com/accessories) - [UPAS Outdoor Enclosure](https://www.accsensors.com/upas_outdoor_enclosure) - [Sample Analysis Services](https://www.accsensors.com/sample_analysis) - Technical Resources Show submenu for Technical Resources - [Applications Blog](https://www.accsensors.com/blog) - [R Shiny Application](https://accsensors.shinyapps.io/shinyAST/) - [astr R Package](https://github.com/accsensors/astr) - [YouTube](https://www.youtube.com/channel/UCbbSB_ja8JY-xX90D94qyKA) - Contact Us Show submenu for Contact Us - [Request Free Demo](https://www.accsensors.com/freetrial) - [Request a Quote](https://www.accsensors.com/quote) - [Request Support](https://www.accsensors.com/support-request-form) - [Our Team](https://www.accsensors.com/about) - [Distributors](https://www.accsensors.com/distributors) Open main navigation Close main navigation - [Products](https://www.accsensors.com/products) Show submenu for Products - [UPAS v2.1](https://www.accsensors.com/upasv2.1) - [UPAS v2.1 PLUS](https://www.accsensors.com/upasv2.1plus) - [UPAS v2.0](https://www.accsensors.com/upasv2.0) - [Home Health Box](https://www.accsensors.com/indoor_sampling) - [Inlets and Accessories](https://www.accsensors.com/accessories) - [UPAS Outdoor Enclosure](https://www.accsensors.com/upas_outdoor_enclosure) - [Sample Analysis Services](https://www.accsensors.com/sample_analysis) - Technical Resources Show submenu for Technical Resources - [Applications Blog](https://www.accsensors.com/blog) - [R Shiny Application](https://accsensors.shinyapps.io/shinyAST/) - [astr R Package](https://github.com/accsensors/astr) - [YouTube](https://www.youtube.com/channel/UCbbSB_ja8JY-xX90D94qyKA) - Contact Us Show submenu for Contact Us - [Request Free Demo](https://www.accsensors.com/freetrial) - [Request a Quote](https://www.accsensors.com/quote) - [Request Support](https://www.accsensors.com/support-request-form) - [Our Team](https://www.accsensors.com/about) - [Distributors](https://www.accsensors.com/distributors) - [Try for Free](https://www.accsensors.com/freetrial) [Try for Free](https://www.accsensors.com/freetrial?hsLang=en) # Home Health Box Sample multiple particulate and gaseous pollutants with 1 instrument, 1 programming step, and 1 log file ![Home Health Box](https://9154461.fs1.hubspotusercontent-na1.net/hub/9154461/hubfs/Home%20Health%20Box-1.jpg?width=1200&length=1200&name=Home%20Health%20Box-1.jpg) ![Home Health Box with sorbent cover removed](https://9154461.fs1.hubspotusercontent-na1.net/hub/9154461/hubfs/Home%20Health%20Box%20No%20Sorbent%20Cover.jpg?width=1200&length=1200&name=Home%20Health%20Box%20No%20Sorbent%20Cover.jpg) ![Home Health Box in kitchen](https://9154461.fs1.hubspotusercontent-na1.net/hub/9154461/hubfs/Home%20Health%20Box%20in%20Kitchen.jpg?width=1200&length=1200&name=Home%20Health%20Box%20in%20Kitchen.jpg) The Home Health Box (HHB) is a compact indoor air sampler and monitor. The HHB can be configured to sample and sense a range of pollutants: - Up to two particulate matter sampling channels - Up to two active gas sampling channels - Time-resolved particulate matter sensing - Time-resolved CO2 sensing - Time-resolved sensing of up to four additional gases (e.g., NO2, CO) using electrochemical sensors All samples are collected using pumps that are virtually silent, just like the pump in our Ultrasonic Personal Air Sampler (UPAS). --- ## Configuration Options and Specifications ### Particulate matter sampling channels | Quantity | The baseline Home Health Box configuration includes two particulate matter sampling channels | | --- | --- | | Flow rate | 1.0 or 2.0 L min-1 (depending on the size-selective inlet used) | | Flow rate accuracy | ± 4% of setpoint (actively controlled) | | Available size-selective inlets | PM2.5 @ 1 L min-1, PM2.5 @ 2 L min-1, Respirable PM @ 2 L min-1, PM10/Thoracic @ 2 L min-1 | | Filter size | 37 mm (default) or 25 mm; quick-change filter cartridges for easy in-field handling | | Maximum back pressure | 7.0" H2O @ 1 L min-1, 4.5" H2O @ 2 L min-1 |   ### Gas sampling channels | Quantity | The baseline Home Health Box configuration includes two gas sampling channels | | --- | --- | | Flow rate | 3 to 30 mL min-1; user programmable | | Flow rate accuracy | ± 4% of setpoint (actively controlled) | | Compatible sorbent media | ¼” OD × 3.5” long (6.35-mm OD × 89-mm long) thermal desorption tubes Waters™ Sep-Pak® cartridges Common glass sorbent tubes (e.g., 6 to 10-mm in diameter) | | Maximum back pressure | 34" H2O |   ### Pollutant sensors | Baseline sensor package | Particulate matter: [Sensirion SEN55](https://sensirion.com/products/catalog/SEN55) (laser light scattering) Carbon dioxide (CO2): [Sensirion SCD30](https://sensirion.com/products/catalog/SCD30) (non-dispersive infrared; NDIR) tVOCs and NOx (qualitative estimates): [Sensirion SGP41](https://sensirion.com/products/catalog/SGP41) (MOx) | | --- | --- | | Electrochemical sensors for additional pollutants | Up to four [Alphasense B-4 series electrochemical sensors](https://www.alphasense.com/products). These sensors are designed to measure ppb-level concentrations. NO2-B43F for nitrogen dioxide (measurement range = \<1 to ~15 ppm); CO-B4 for carbon monoxide (measurement range = \<1 to ~10 ppm); contact our engineering team if you'd like sensors for other pollutants added to your HHB (e.g., NO, O3). |   ### Power | Power supply | 15 W, 5 V USB Type-C® | | --- | --- | | Line power | The Home Health Box can run indefinitely when plugged into a wall outlet | | Battery | Li-ion; 24 W-h; battery life will depend on the sample configuration, filter media, sorbent media, and local air density; 8-h runtime on battery when collecting two filter samples on MTL PTFE membrane filters at 2 L min-1 and two gas samples on Markes Carbopack X SafeLok™ thermal desorption tubes at 30 mL min-1 with PM sensor, CO2 sensor, and one Alphasense B-series electrochemical sensor running in a location with 1.0 g L-1 air density. | | Charging time | When the HHB is not running, the battery will charge fully in 2 h using the provided 15 W, 5 V USB Type-C wall adapter. |   ### Size, weight, and noise | Exterior size | 213 mm × 132 mm × 107 mm, excluding size-selective inlets | | --- | --- | | Weight | Up to 1.5 kg; depends upon configuration and sample media installed (all sample media to be provided by the user) | | Noise | \< 50 dB at 25 cm distance |   ### Data logging | Memory type | microSD™ card | | --- | --- | | Data logging interval | 5, 15, 30, or 60 s; default = 30 s |   ### Operating conditions | Temperature | Operating = -20 to 60 °C; Charging = 0 to 45 °C; Storage = -20 to 50 °C | | --- | --- | | Relative humidity | Up to 95% at 40 °C (non-condensing) | | Altitude | 2,500 ft (760 m) below sea level to 20,000 ft (6,100 m) above sea level; all sample flow rates will be adjusted automatically for variations in air density within this altitude range. |   --- ## Sample media compatibility ### Which filters can I use to sample particulate matter with the HHB? Either 37- or 25-mm-diameter filters can be used to collect PM samples with the HHB. For samples that will undergo gravimetric, optical black carbon, and/or X-ray fluorescence (XRF) analyses, we recommend using PTFE (Teflon™) membrane filters with 2-μm pores ([Measurement Technology Laboratories](https://www.mtlcorp.com) part number PT37P-PF03 for the 37-mm version and PT25P-PF03 for the 25-mm version). Many other filters can also be used in the HHB; however, there are some air sampling filters that are *not* compatible with the HHB. The filter sample pump that makes the HHB virtually silent also has a lower tolerance for “back pressure” (resistance to flow) than many of the larger, noisier pumps that have been used historically to collect indoor PM samples. In the table below, we indicate whether various filters can be used to sample PM with the HHB at flow rates of 1 and 2 L min-1. For most of the filters listed below, we provide an example part number for the 37-mm version, but performance is typically similar for 37- and 25-mm versions of the same filter. | **Filter type** | **Pore size (μm)** | **Example product** | **Sample flow rate** | | | --- | --- | --- | --- | --- | | **1 L min-1** | **2 L min-1** | | | | | PTFE membrane | 2.0 | MTL PT37P-PF03 | | | | PTFE membrane | 1.0 | Zefon FPTFE137 | | | | PVC membrane | 5.0 | SKC 225-5-37 | | | | Quartz fiber | - | Pall Tissuquartz 2500QAT-UP | | | | Glass fiber, grade A-E | 1.0 | Zefon IW-AE3700 | | | | Emfab™ (borosilicate microfiber w/ woven glass, PTFE bonded) | - | Pall TX40HI20WW | | | | Gelatin | 3.0 | Sartorius 12602--37----ALK | | | | MCE | 0.8 | SKC 225-1939 | | | | Polycarbonate membrane | 1.2 | Millipore RTTP02500 | | | | Polycarbonate membrane | 1.0 | Sterlitech 1270064 | | | | **Legend:** | | | | | | Compatible with AST particulate matter samplers, including the PM sampling channels on the HHB | | | | | | Suitable for use if required by your sampling protocol or analysis method;  pump voltage setting required to sample through clean filter is \>75% of the maximum recommended value; slight concern about the voltage setting that might be required to sample through a filter that is heavily-loaded with PM | | | | | | Not recommended or not compatible for use with the UPAS; pump voltage setting required to sample through clean filter is greater than the maximum recommended or maximum allowable value | | | | |   ### Which sorbent media can I used to sample gas-phase pollutants with the HHB? The HHB sorbent media pocket will accommodate ¼” OD × 3.5” long (6.35-mm OD × 89-mm long) stainless-steel thermal desorption tubes, Waters™ Sep-Pak® cartridges, as well as most common (e.g., 8-mm diameter) glass sorbent tubes. The gas sampling channels on the HHB have much higher tolerances for back pressure than the PM sampling channels. --- ## Technical Resources [![Screenshot of page 1 of Home Health Box Product Information Sheet](https://www.accsensors.com/hs-fs/hubfs/Images%20-%20Icons/ProductInfoSheet_HHB.png?width=750&height=1000&name=ProductInfoSheet_HHB.png "Screenshot of page 1 of Home Health Box Product Information Sheet")](https://www.accsensors.com/hubfs/Product%20Info%20Sheets/AST-HHB-Product%20Info%20Sheet.pdf?hsLang=en) ### Product Information Sheet HHB capabilities and specifications, revision 1.9, released July 2026 [Download PDF](https://www.accsensors.com/hubfs/Product%20Info%20Sheets/AST-HHB-Product%20Info%20Sheet.pdf?hsLang=en) [![Screenshot of Home Health Box User Guide cover page](https://www.accsensors.com/hs-fs/hubfs/Images%20-%20Icons/UserGuide_HHB.png?width=750&height=1000&name=UserGuide_HHB.png "Screenshot of Home Health Box User Guide cover page")](https://www.accsensors.com/hubfs/User%20Guides/HHB_UserGuide.pdf?hsLang=en) ### User Guide Home Health Box User Guide, revision 2.6, released August 2026 [Download PDF](https://www.accsensors.com/hubfs/User%20Guides/HHB_UserGuide.pdf?hsLang=en) [![Screenshot of Home Health Box Quick-Start Guide cover page](https://www.accsensors.com/hs-fs/hubfs/Images%20-%20Icons/QSG_HHB.png?width=750&height=1000&name=QSG_HHB.png "Screenshot of Home Health Box Quick-Start Guide cover page")](https://www.accsensors.com/hubfs/User%20Guides/HHB_QuickStartGuide.pdf?hsLang=en) ### Quick-Start Guide A shorter version of the HHB User Guide, revision 2.5, released August 2026 [Download PDF](https://www.accsensors.com/hubfs/User%20Guides/HHB_QuickStartGuide.pdf?hsLang=en) [![File icon](https://www.accsensors.com/hs-fs/hubfs/Images%20-%20Icons/file_icon.png?width=750&height=1000&name=file_icon.png "File icon")](https://www.accsensors.com/hubfs/Firmware/HHBv2_Firmware_260811.bin?hsLang=en) ### Firmware Latest version released 11 August 2026 [Download .bin file](https://www.accsensors.com/hubfs/Firmware/HHBv2_Firmware_260811.bin?hsLang=en) [![Screenshot of Home Health Box Configurator software](https://www.accsensors.com/hs-fs/hubfs/Images%20-%20Icons/Software_HHB.png?width=1500&height=2000&name=Software_HHB.png "Screenshot of Home Health Box Configurator software")](https://www.accsensors.com/hubfs/Software/HHBv2%20Configurator%20V1.5R2-executable.zip?hsLang=en) ### Desktop software For programming HHB sample settings [Download .zip folder](https://www.accsensors.com/hubfs/Software/HHBv2%20Configurator%20V1.5R2-executable.zip?hsLang=en) [![Screenshots from public Home Health Box Zotero library](https://www.accsensors.com/hs-fs/hubfs/Zotero_HHB.png?width=750&height=1000&name=Zotero_HHB.png "Screenshots from public Home Health Box Zotero library")](https://www.zotero.org/groups/5613317/home_health_box/library) ### Zotero Library Publications that feature the HHB [Link to public Zotero library](https://www.zotero.org/groups/5613317/home_health_box/library) [![Screenshot of readme for astr package](https://www.accsensors.com/hs-fs/hubfs/astr_R_package-1.png?width=750&height=1000&name=astr_R_package-1.png "Screenshot of readme for astr package")](https://github.com/accsensors/astr) ### astr package R package for working with HHB log files [Link to GitHub](https://github.com/accsensors/astr) ## Related Blog Posts ![hut\_img1](https://www.accsensors.com/hs-fs/hubfs/hut_img1.jpeg?width=300&height=225&name=hut_img1.jpeg "hut_img1") [Measuring Indoor Air Pollution on a Hut Trip with the UPAS v2.1 PLUS](https://www.accsensors.com/from-the-access-sensor-tech-team/measuring-indoor-air-pollution-on-a-hut-trip-with-the-upas-v2?hsLang=en)         # Frequently-Asked Questions - ### Can I use my UPAS inlets with the HHB? Yes, we've engineered the Home Health Box to be part of the family. Use the same GEN2 size-selective particulate matter inlets, filter cartridges, inlet tools, and flow-check adapters that you use with personal samplers you've purchased from us. - ### How do I program the HHB? Program the HHB using our desktop software for Windows PCs. The software allows for custom control over all sample settings, allowing you flexibility in campaign design and ensuring you get the data you want. - ### How do I power the HHB? The HHB is designed to be plugged into a wall outlet using a common USB-C adapter (included). It also includes a backup battery so that the HHB can continue sampling during short-duration power loss. - ### How long does it take to set up? It's easy to install sample media and program the sample settings before visiting the indoor environment to be monitored. Once you're on site, the HHB can be plugged in and powered on in less than a minute. - ### Can I ship the HHB to the monitoring site to save time and money? Sure! We've used the Home Health Box in a mail-away model ourselves. If someone at the location to be monitored can plug the HHB in and press the power button, they can start the sample without you. - ### How are sample data logged? All sample data are logged to a microSD card inside the Home Health Box. Sample log files are written in .csv format. These files can be read into the R programming environment using our astr package. # Forms [![Photograph of UPAS and accessories with shipping cases](https://www.accsensors.com/hs-fs/hubfs/IMG_7465%20Large-2.jpeg?width=1000&height=750&name=IMG_7465%20Large-2.jpeg "Photograph of UPAS and accessories with shipping cases")](https://www.accsensors.com/freetrial?hsLang=en) ### Request a free product demonstration We can send you a Home Health Box to try for a few weeks before you buy. This demonstration is free as long as the product is returned at the end of the demonstration period. No purchase is required.  Fill out and submit this [form](https://www.accsensors.com/freetrial?hsLang=en) to request a demonstration unit. [![A photograph of a Home Health Box in a kitchen](https://www.accsensors.com/hs-fs/hubfs/HHB_Refurbished.jpg?width=1000&height=750&name=HHB_Refurbished.jpg "A photograph of a Home Health Box in a kitchen")](https://www.accsensors.com/quote?hsLang=en) ### Request a quote Fill out and submit this [form](https://www.accsensors.com/quote?hsLang=en) to request a quote. It's okay if you still have questions and aren't sure which products or product configurations you need. You can enter your questions on the form and we'll get back to you. 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