Low pass filter of device orientation

low-pass-device.js

var tilt = {
  alpha: 0,
  beta: 0,
  gamma: 0
};

function lowPass(prev, curr, co) {
  return prev * co + curr * (1 - co);
}

window.addEventListener('deviceorientation', function(event) {
  tilt.alpha = lowPass(tilt.alpha, event.alpha, 0.8);
  tilt.beta = lowPass(tilt.beta, event.beta, 0.8);
  tilt.gamma = lowPass(tilt.gamma, event.gamma, 0.8);
}, true);

Would this mitigate the alpha drift?