AER air purifier for offices

What We Do

Your Office Brings Your Team Together — and So Does Every Airborne Illness That Enters It

Open-plan offices, shared conference rooms, and break areas concentrate employees in enclosed spaces for extended periods throughout the working day. Every person present contributes respiratory aerosols to the shared air — and when one employee is sick, the transmission risk extends to everyone in the space for hours before any symptoms are apparent.

prePaer provides continuous ULPA-grade air filtration at the room level — reducing the airborne pathogen and allergen load in the spaces where your team works, meets, and collaborates. The result is fewer sick days, more consistent attendance, and a workplace that demonstrates genuine care for the people who show up every day.

The Hidden Cost of Office Air Quality

Respiratory Illness Is One of the Largest Drivers of Lost Productivity in the Modern Workplace

The average office worker loses 3 to 5 working days per year to respiratory illness — with a significant proportion contracted in the workplace itself. Beyond direct absenteeism, presenteeism — the productivity loss from working while unwell — adds a further cost that rarely appears in any operational metric but affects output quality, decision-making, and team performance throughout the season. Standard office HVAC systems manage temperature and basic air circulation; they are not designed or rated to capture the sub-micron particles that carry influenza, COVID-19, and other respiratory pathogens between workstations and across shared spaces.

Consider This: What Circulates Through Office Air During a Working Day

The Airborne Exposure That Accumulates Across Every Meeting, Every Shared Space, Every Day

AER air purifier for offices
AER air purifier for offices
AER air purifier for offices
  • Pre-Symptomatic Transmission: Employees are often most contagious in the 24–48 hours before they feel unwell enough to stay home. During that window, they attend meetings, share spaces, and breathe the same air as colleagues — generating aerosols that carry influenza, COVID-19, and other respiratory pathogens throughout the office environment.
  • Conference Room Concentration: Meeting rooms concentrate multiple people in small, often poorly ventilated spaces for extended periods. A one-hour meeting with a pre-symptomatic participant can expose everyone present to a significant aerosol dose that standard HVAC cannot clear between sessions.
  • Open-Plan Transmission Distance: In open-plan offices, respiratory aerosols from a single employee can travel the length of a workstation row before settling — exposing colleagues who may not have been in direct proximity or conversation throughout the day.

  • Seasonal Allergy Impact:
    Pollen, dust, and mold spores circulate through office HVAC systems and affect employees with seasonal allergies throughout large portions of the year — reducing concentration, increasing absenteeism, and contributing to the chronic low-grade productivity loss that allergy sufferers experience in the workplace.
  • High-Traffic Common Areas: Reception areas, kitchens, break rooms, and lift lobbies are high-turnover spaces where multiple people pass through and share air briefly but frequently — creating transmission pathways between departments that are otherwise separated by distance or floor.
  • Return-to-Office Expectations: As more organizations require or encourage in-person attendance, employees and their representatives increasingly expect visible, documented evidence that the employer is taking indoor air quality seriously as part of its duty of care obligations.

Our Solution: The prePaer AER System

Our Solution: The prePaer AER System

prePaer is freestanding and requires no installation. Position a unit in a conference room, at the end of an open-plan workstation row, or in a reception area — it begins filtering immediately. Reposition it between spaces based on usage patterns and occupancy throughout the day.

The prePaer AER System

Room-Level Air Protection for Every Space Where Your Team Spends the Working Day

ULPA Filtration at 0.12 Microns — Captures What HVAC Cannot:

Standard office HVAC systems use MERV 8–11 filters designed for dust and large particle removal. prePaer’s ULPA filter captures 99.999% of particles at 0.12 microns — including the fine aerosol particles that carry influenza, COVID-19, and RSV between workstations and across shared spaces.

Conference Room Protection During High-Density Meetings:

A prePaer unit in the conference room continuously filters air throughout the meeting session — reducing the aerosol concentration that accumulates when multiple people occupy a small space for an extended period. Between sessions, it continues clearing the air before the next group arrives.

Allergen Reduction for Allergy-Affected Employees:

Pollen, dust mite allergens, and mold spores that enter the office through HVAC systems and foot traffic are captured by prePaer’s ULPA filter — reducing the airborne allergen load that triggers symptoms in employees with seasonal or perennial allergies throughout the working year.

No Installation — Deployable the Same Day:

No HVAC modification, no electrician, no facilities coordination. prePaer arrives ready to use. Plug it into a standard outlet, position it in the target space, and it is protecting the room immediately — making it practical for any office, in any building, with any tenancy arrangement.

A Visible Commitment to Employee Wellbeing:

Employees notice when employers invest in the physical quality of the shared work environment. prePaer is a visible, operational device — not a policy statement. Its presence in meeting rooms and common areas signals that the organization takes the health of the people working there seriously.

Productivity & Retention

Fewer Sick Days. Better Attendance. A Workplace People Want to Return To.

The case for office air quality investment is not solely about health — it is about the operational performance of the organization. Every sick day costs the business in direct productivity loss and in the coordination overhead of covering absent colleagues. Every employee who comes in unwell because they feel they cannot afford to be absent creates transmission risk for those around them and performs at a fraction of their capacity.

Organizations that invest in measurable air quality improvements — and communicate that investment to their teams — also report benefits in employee satisfaction and return-to-office engagement. In a competitive talent environment, a workplace that demonstrably prioritizes the health of its people is a differentiator that shows up in retention and recruitment conversations.

Frequently Asked Questions

Commercial HVAC systems typically use MERV 8–13 filters, which capture particles down to approximately 1–3 microns at reasonable efficiency. The sub-micron aerosol particles that carry respiratory viruses — typically 0.1–1 micron in size — pass through standard commercial filters readily and recirculate through the building. prePaer’s ULPA filter captures 99.999% of particles at 0.12 microns and operates at the room level, addressing the air immediately surrounding the people in the space rather than waiting for air to cycle back through the central system.

A practical starting point is one unit for each conference room and one unit per major open-plan work area. Reception, break rooms, and any other high-traffic enclosed spaces benefit from dedicated units. The right number depends on your floor plan, occupancy density, and the spaces your team uses most. prePaer is portable — it can be moved between spaces throughout the day as occupancy patterns shift.

Yes. prePaer is designed for continuous unattended operation. Switch it on at opening and it filters throughout the working day without requiring any staff attention. The only maintenance required is periodic filter replacement — every two weeks under standard office conditions, though high-occupancy environments may benefit from more frequent changes.

Completely. prePaer requires no modification to building systems, no drilling, no installation, and no landlord approval. It plugs into a standard 110/120-volt outlet and operates as a freestanding piece of office equipment — entirely within the tenant’s control and removable at the end of a lease.

Yes. In addition to its ULPA particulate filter, prePaer includes a carbon filtration layer that effectively captures odors, VOCs, and chemical compounds that can contribute to “sick building syndrome” — including off-gassing from furniture, cleaning products, and building materials. This makes it relevant not just for pathogen and allergen reduction but for overall indoor air quality improvement in the workplace.

AER air purifier for offices

Indoor Air Quality Is an Employer Responsibility — and a Competitive Advantage

Employers have a legal duty of care to provide a safe working environment. Post-pandemic, indoor air quality has become part of that conversation in a way it was not a decade ago. Employees, health and safety representatives, and regulatory guidance increasingly treat indoor air quality as an occupational health matter — not simply a comfort issue. Employers who address it proactively are better positioned on every dimension: compliance, retention, productivity, and the increasingly important question of why employees should choose to be in the office rather than at home.

prePaer is the practical, deployable answer to that question — a visible, operational investment in the quality of the shared environment that demonstrates the organization’s commitment to the people who occupy it.

Ready to invest in the air quality of your workplace and the health of the people who work there? Let’s find the right solution for your office.

More Industries We Serve

One System. Every Industry.

Laboratory-grade air filtration trusted across healthcare, education, hospitality, and beyond.