Indoor environmental quality assessment

This assessment is our most common service which aims to identify whether there are any indoor environmental quality issues in the occupied space. We not only offer a comprehensive test panel sampling for common indoor pollutants, but also conduct a walkthrough to identify areas of concerns and how to mitigate them.

Reasons to conduct this type of assessment include gauging the environmental quality of a new renovation, regulatory compliance with national (GB50325-2010, GB/T18883-2002) and international standard (EPA, OSHA, etc.), and help identify what may be leading to staff discomfort and/or complaints.

Common contaminants tested include:

  • air–PM2.5, formaldehyde, TVOC, lead, benzene, radon, ammonia
  • water–chlorine, lead, colony count, nitrates, heavy metals, etc.

PM 2.5 and building tightness investigation

In China, PM2.5 pollution is an unavoidable topic of concern. 

This investigation audits a building’s envelope tightness, HVAC system, recirculating filtration, and occupant activities to ultimately determine how much protection the building is providing from outdoor particulate pollution. We also measure carbon dioxide levels to determine whether a tight space is providing sufficient fresh air for the occupied space.

Using a combination of handheld instruments and continuous monitors, we can identify leaky windows and doorways, saturated filters and purifiers, indoor sources of dust, and the space’s PM2.5 action level––the outdoor PM2.5 level at which the interior environment is projected to surpass standards.


Mold investigation and testing

PureLiving is the only environmental consultancy in China that provides mold testing, investigation, and remediation services in accordance to international best practices.


Mold testing

Mold testing helps identify whether there is a mold issue and is particular useful in cases where there are no signs of visible mold growth but odors, occupant symptoms, and/or moisture issues suggest otherwise. Mold samples are collected in the areas of concern and shipped to the US for analysis. Results determine:

1)  the severity of mold growth by comparing measurements against outdoor reference and indoor control levels and

2)   the types of molds colonizing the area and whether they are harmful to humans (i.e. Stachybotrys Chartarum AKA “Toxic Black Mold”).


Mold investigations

Mold requires oxygen, a food source (typically cellulose-based materials), the right temperature, and moisture to proliferate. The goal of a mold investigation is to identify how to limit moisture, as it is almost always the easiest factor to control.

PureLiving consultants utilize a combination of hygrometers, thermal imagery, moisture meters, bore scopes, and experience to identify the source of moisture then provide written step-by-step directions on how to stop the mold source and how to physically remove the growth.


Chemical and odor investigation

This investigation has two purposes:

1)identify an unknown odor

2)determine what chemical is leading to elevated TVOC levels after conducting an indoor environmental quality assessment.

We do this by utilizing an advanced TVOC analysis method––which can identify over 65 different VOCs in the ambient air as opposed to a single cumulative concentration that is usually derived––then comparing the results with odor thresholds and reference standards to determine what chemicals occupants may be sensing. We also use an imported real-time TVOC sensor that allows us to “bloodhound” and identify indoor sources of chemical emissions.

Lead investigation

Lead and asbestos investigation

Lead and Asbestos are materials known to cause cancer.

However, they are loosely regulated and still commonly found in construction materials and older buildings. This testing aims to identify whether there is lead or asbestos in the airway, water, or building materials.


LEED (V2009 and V4) and WELL consultation and testing

LEED and WELL projects can get complex and overwhelming.

We help clients achieve the air and water concepts requirements by determining the most practical features for a project space and designing and implementing strategies to accomplish the said features. We provide diagnostic air testing with real-time instruments to give instant results and also design filtration solutions to ensure the project space complies with LEED and WELL’s stringent air quality requirements.

In additional, we have successfully completed Asia’s first Indoor Air Quality Assessment credit testing for LEED v4 and can offer this service for LEED projects.


Office re-stacking projects

Office re-stacking projects need to juggle not only the complexities of a typical renovation but also take into consideration how to limit renovation pollutants contaminating the occupied workspace. This type of project utilizes a variety of our services to ensure that emissions created during renovation do not enter the occupied workspace.








Mold Removal 

In China, it is a common occurrence for maintenance teams and landlords to overlook the severity of mold issues and simply paint over visible growth.  This “Band-aid” solution is deceptive and potentially dangerous because contaminants are still present in the occupied space and can exacerbate or lead to the development of allergies.  PureLiving provides end-to-end mold removal service in accordance with the ANSI/IICRC S520 Professional Mold Remediation Standard. 

We incorporate a combination of products, services, and techniques to:

1) stop the source of moisture leading to perpetual mold growth and

2) physically remove mold spores and structures to limit occupant exposure and thus adverse health effects.









境纯提供多种使用点和进水点的过滤系统,该类过滤系统符合NSF/ANSI 42和53水处理标准,能够为居用者提供安全用水。




Pure-Qi(Automated Circled Filtration System)



    • High efficiency PM reduction
    • Independent of central system
    • Ultra quiet
    • Low power usage
    • Modular options for other pollutants
    • Save floor space
    • Automated controls
    • Low maintenance

性能:Pure-Qi VS 便携装置

12分钟内,我们的Pure-Qi系统能够达到35ug/m2的美国EPA标准。连续工作1小时后,Pure-Qi能够将PM2.5水平降低到3ug/m2 。










Smart Eco-Control System

Facility and asset management is increasingly challenging. Powered by PureLiving, the ECS (eco-control system) is a cloud-based building management system that provides single point of control for fresh air and filtration. Using ECS is one-step control to help you improve your building management anywhere, anytime.

eco-control system

System Features

Single Point Control 

With pre-setting at the initial installation, all filtration systems and monitors are automatically connected and ready to go just by simply pressing the on/off button for daily usage.

Accurate Spot Identification

All filtration systems and monitors are accurately shown on the system control dashboard. You can quickly identify equipment problems, avoid downtime, and reduce maintenance costs, all from one source. 

Data Management and Mobile Operation

Data from the filtration system and monitors are gathered on the ECS cloud-based platform, which allows users to monitor performance and control the system anywhere, anytime. Comprehensive reporting capabilities provide performance trends for users to improve management efficiency.

Energy Saving 

With pre-configured setting, the system is able to recognize the indoor air quality situation in real time and turn on and off automatically when reaching pre-set thresholds. ECS helps users optimize performance, save energy costs, and reduce operation risks.



  • 验证解决方案的有效性
  • 给予租户/员工信心
  • 使企业在市场价值上区别于其它公司,降低员工流失率


  • 在施工区/居用区内部/附近安装专业的通过RESET标准认证监测器,跟踪污染物进入的时间和地点 
  • 设置预防措施及分析趋势警告 


Grade A 是专业级别监测器,主要用于洁净空间,工厂,医院等,是市场上尖端的手持式传感器。

Grade B 是建筑级别监测器,是RESET标准最适合的监测器,能够在保证性价比的同时稳定地提供准确数据。

Grade C 是商用级别监测器,达不到Grade B级别的精确度,通常用于家庭。

RESET标准要求使用Grade A和Grade B级别的监测仪器。





  • 通过浏览器云服务或QLEAR应用程序访问实时报告
  • 管理员仪表板,适用于分析、用户权限管理和通知
  • 能够将室内数据与户外数据进行比较
  • 应用程序界面可将QLEAR与外部系统(即BMS)和/或第三方应用程序连接



  • 全自动操作,减少人为错误
  • 降低70%-80%的运营成本
  • 提高成效 

total care

Included Services 

Installing quality technology is only the first step to enjoying clean air. Like your body, systems break down and need maintenance to perform at their best. With Total Care, PureLiving engineers visit your site and perform all necessary filter changes and system checks, allowing you to enjoy peace of mind with guaranteed clean air.

Only Total Care provides you the peace of mind and industry-leading performance guarantee that the ambient air you breathe achieves US EPA standards for clean air (< 35 ug/m3). Other companies only guarantee the readings at their equipment outlet. 

total care

total care

Continuing maintenance for your Pure-Qi filtration system is vital to ensuring the quality of your air is always the best it can be. To ensure your system delivers consistent performance, PureLiving is introducing our Total Care Filtration Maintenance Package to guarantee your results meet the US EPA, WHO, GB3095-2012 or other standard for PM2.5. 

  • One year extended warranty
  • Seven point system check
  • Industry-leading performance guarantee
  • Genuine PureLiving filters
  • On-going IEQ support