In an effort to support a healthier and more productive workforce, employers across the country are expected to spend an average of $3.6 million on wellness programs in 2019. Think onsite gyms. Standing desks. Meditation rooms. Nursing hotlines. These are just some of the benefits companies are investing in.

But is any of it paying off?

The results of a recent Harvard study suggest that wellness programs, offered by 80% of large U.S. companies, yield unimpressive results — and our findings mirror this. Future Workplace and View recently surveyed 1,601 workers across North America to figure out which wellness perks matter to them most and how these perks impact productivity.

Surprisingly, we found employees want the basics first: better air quality, access to natural light, and the ability to personalize their workspace. Half of the employees we surveyed said poor air quality makes them sleepier during the day, and more than a third reported up to an hour in lost productivity as a result. In fact, air quality and light were the biggest influencers of employee performance, happiness, and wellbeing, while fitness facilities and technology-based health tools were the most trivial.

Organizations have the power to make improvements in these areas, and they need to, both for their workers and themselves. A high-quality workplace — one with natural light, good ventilation, and comfortable temperatures — can reduce absenteeism up to four days a year.  With unscheduled absenteeism costing companies an estimated $3,600 annually per hourly worker and $2,650 each year for salaried workers, this can have a major impact on your bottom line.

Other research finds that employees who are satisfied with their work environments are 16% more productive, 18% more likely to stay, and 30% more attracted to their company over competitors. Two-thirds of our survey respondents said that a workplace focused on their health and wellbeing would make them more likely to accept a new job or keep the job they have. This means that companies willing to adapt to an employee-centric view of workplace wellness will not only increase their productivity, they will also improve their ability to attract and retain talent.

To get started, here are three steps you can take to improve your work environments and the wellbeing of your employees.

[Here is the first of three steps.]

1.  Stop spending money on pointless office perks. A good rule of thumb is to never assume that you know what your employees want — but instead, find ways to ask them. If more employers did, they might put less emphasis on office perks that only a minority of employees will take advantage of (like an onsite gym), and more on changes in the workplace environment that impact all employees (like air quality and access to light).

The number one environmental factor cited in our survey was better air quality. Fifty-eight percent of respondents said that fresh, allergen-free air would improve their wellness. Fifty percent said they would work and feel better with some view of the outdoors, while one third said they would want the ability to adjust the temperature in their workspace. Only one in three survey respondents characterized their office temperature as ideal.

Noise distractions bothered more than a third of those surveyed, impacting their ability to concentrate. Employees said sounds like phones ringing, typing on keyboards, and distractions from coworkers all impacted their concentration.

Almost half of our respondents wanted to see their companies improve these environmental factors, and in many instances, more than they wanted to be offered office perks. The first step, then, is to take a look at where you are spending your money, and consider cutting expenses that aren’t worth the cost.